Our performance base layer for active young riders, this technical UV50+ quarter zip base layer is designed to regulate body temperature. Ventilated underarms keep you cool and dry, and the unique technical fabric moves moisture away from the skin to ensure optimum comfort.
Sweat-wicking, antimicrobial, and with 360° stretch for unrestricted comfort, there's nothing this base layer can't do. The silky-smooth fabric, ultra-soft seams, and flatlock stitches reduce chafing and keep bulk to a minimum - so it's versatile when worn under a fleece, jacket, or gilet.
With a wide range of colours available, you can mix and match your LeMieux horse and rider wear to create your own unique look.
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09181_lifestyle_loireclassicgpsquare_blackberry_07-1.png)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07986_product_vervglosscompetitionhelmet_navy_7.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07989270_studio_vexaskullhelmet_silver_002%20(2)-3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07985_product_vervcompetitonhelemet_glossblack_6%20(1)-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08833_lifestyle_brillianceheydenlightweightbaselayer_espresso_005.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09001_lifestyle_toyrider_harlow_08.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08901_product_brillianceridingboot_black_04-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08999_lifestyle_griptteklungeline_black_01-2.png)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/MicrosoftTeams-image-(4)%20(1)-2.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09165_lifestyle_suededrsquare_russet_11-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09207_lifestyle_arikaripstopturnoutrug_bramble_1-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09206_lifestyle_arikajerseytek_aloe_1-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT03739_lifestyle_arikadressagebridle_brown_1%20copy-2-3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT04491_lifestlye_arikasimuwoolcontoureddressagegirth_black_1-4.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT00808_lifestyle_diamanteacousticflyhood_black_3-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09172_lifestyle_classicflyhood_gooseberry_01-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09199_lifestyle_arikaoverreachboots_blackberry_02%20(1)-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT03359_lifestyle_exoflextendonboot_blacksilver_10-(2)-12.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08352_lifestyle_ropecontrolheadcollar_pecan_02.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09413_lifestyle_vogueheadcollarandleadrope_russet_02-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT04486_lifestyle_essentialyardheadcollar_burgundy_1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08377_lifestyle_camo-tekflyrug_macaron_1-(3).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/half_mask_copy_1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09185_lifestyle_loireflyhood_russet_04-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08417_lifestyle_flexisoftbodybrush_powderblue_04.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT04244_lifestyle_eliteprogroomingbag_navy_2-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT04967_lifestyle_twinbridlebag_navy_1NEW-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT03912_lifestyle_horsetoy_banana_1-1-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Bay-png-1.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Grey-png-3.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Chestnut-png-3.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Black-horse-PNG.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Dun-png-3.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Dapple-Grey-png-3.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Palomino-png-1.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Appaloosa-png-3.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Piebald-png-3.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Skewbald-png-3.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Screenshot%202026-08-20%20135915-1.png)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT05249_lifestyle_suedeclosecontactsquare_alpine_4.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09274_lifestyle_edensparklehoodie_blackberry_004-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08883_lifestyle_brilliancedianashowjacket_black_001-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT04711_lifestyle_fieldridingboot_black_04g.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09351_lifestyle_kanta_waterproof_trainer_bramble_4-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09505_lifestyle_bootandhatbag_blackberry_04-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09521_studio_classiquepomhatsilk_russet_001-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Screenshot%202026-08-20%20141112-1.png)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07158_lifestyle_classiquebaselayer_lilac_8-4.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09453_lifestyle_minibaselayer_blackberry_001-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09482_lifestyle_youngridermiameshbaselayer_russet_004-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08878_product_juniorinterchangeableridingboot_black_03-(3).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09353_lifestyle_junior_kanta_waterproof_trainer_aloe_1-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09526_studio_minidoublepomhatsilk_petal_001.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08444_lifestyle_toypony_sundance_02-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT05141_lifestyle_youngriderbaselayer_cinder_1-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09550_lifestyle_mensrugbyshirt_olive_001-3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08495_studio_mensshowjacket_black_001-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT03920_lifestyle_unionjackcap_navy_2p.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/GROUP_lifestyle_eliteluggage_navy_3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07407_lifestyle_mensquarternecksweat_black_002.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Toy-pony%20builder.png)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08442_lifestyle_toypony_toby_2-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09001_product_toyrider_harlow_02.20260422092.jpg){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08982_product_toyrider_florence_.jpg){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT06957-Toy%20Rider%20Olivia-1.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT06956-Toy%20Rider%20Chloe-1.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT06958-Toy-Rider%20Maya.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08982_lifestyle_toyrider_florence_1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09325_lifestyle_hobbyhorsemini_smokey_1-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT10023_product_tinybeaniepony_lordshipsgruffalo_01-copy.webp){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Tiny-Pony%20Freya-2.png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Tiny-Pony-Sam%20(2).png){kind=small}
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/GROUP_lifestyle_toyponylordshipsgruffalo_7-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09181_lifestyle_loireclassicgpsquare_blackberry_06-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09167_lifestyle_suedegpsquare_blackberry_001-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09163_lifestyle_suedeccsquare_gooseberry_16-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09163_lifestyle_suedeccsquare_gooseberry_01-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09176_lifestyle_loireclassicccsquare_russet_03-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09165_lifestyle_suededrsquare_russet_01-1.png)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09295_lifestyle_ponyonlyccsquare_aloe_02-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09173_lifestyle_merino+suedeclassicclosecontactsquare_aloe_12-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09174_lifestyle_merino+suedeclassicccsquare_spicedearth_07-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT09174_lifestyle_merino+suedeclassicccsquare_spicedearth_14-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08290_lifestyle_loireclassicgpsquare_mallow_22.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08290_lifestyle_loireclassicgpsquare_mallow_14-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08274_lifestyle_suedegpsquare_powderblue_6-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08288_lifestyle_loireclassicdressagesquare_powderblue_16.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08296_lifestyle_proairmeshdressagesquare_shadow_1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08294_lifestyle_proairmeshclosecontactsquare_shadow_2-(2).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08292_lifestyle_loireclassicgpsquare_jungle_8-(2).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08286_lifestyle_loireclassicccsquare_jungle_%201%20(1)-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08266_lifestyle_suedeccsquare_macaron_3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08266_lifestyle_suedeccsquare_macaron_7-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08205_lifestyle_juliettejacket_fondant_02-(2).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08584_lifestyle_youngriderclassiquebaselayer_fondant_3-(2).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07083_lifestyle_suedeccsquare_lilac_4-3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07094_lifestyle_suededressagesquare_lilac_7-(1)-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07093_lifestyle_suededressagesquare_cranberry_9-(3)-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07090_lifestyle_loireclassicccsquare_cranberry_1-(1)-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT05950_lifestyle_suededressagesquare_blossom_105%20(1)-4.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT05947_lifestyle_suedeclosecontactsquare_blossom_104-6.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT06929_lifestyle_3dmeshselfcoolejsquare_navy_07.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08105_lifestyle_suede_dressage_square_navy_4-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07605_lifestyle_loireclassicccsquare_benetton_14.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07597_lifestyle_suedeclosecontactsquare_benetton_11-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07601_lifestyle_suedeclosecontactsquare_iceblue_09.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08116_lifestyle_loire_dressage_square_iceblue_3-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT05248_lifestyle_suedeclosecontactsquare_glacier_5-4.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07954_lifestyle_loireclassicccsquare_glacier_3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Azure_Menu-2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Azure2_Menu-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08100_lifestyle_suedegpsquare_huntergreen_04-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08114_lifestyle_loire_dressage_square_huntergreen_2.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT05255_lifestyle_suedegpsquare_alpine_6-4.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT05249_lifestyle_suedeclosecontactsquare_alpine_1-1-3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08113_lifestyle_loiredressagesquare_chilli_03.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07599_lifestyle_suedeccsquare_chilli_8-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08087_lifestyle_cottongpsquare_burgundy_04.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07594_lifestyle_cottonccsquare_burgundy_-1%20(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT03803_lifestyle_puissanceflyhood_brown_3-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07593_lifestyle_cottonccsquare_brown_3-(2).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08115_lifestyle_loire_dressage_square_black_3.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08107_lifestyle_cottondressagesquare_black_1-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Grey_Menu-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Grey2_Menu-1.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT08089_lifestyle_cottongpsquare_white_02-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/IT07603_lifestyle_suedenclosecontactsquare_white_11-(1).jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/cms/media/Gift-vouchers.png)
:fill(white):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05142_studio_youngriderbaselayer_alpine_0001.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05142_studio_youngriderbaselayer_alpine_0003.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05142_studio_youngriderbaselayer_alpine_0002.jpg)
:fill(white):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05142_studio_youngriderbaselayer_alpine_0004.jpg)
From $10.13 per month:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05357_studio_minipullon_alpines_2.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05143_studio_youngridermiameshbaselayer_ginger_0001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05249_product_suedeclosecontactsquare_alpine_1.20240925092847742.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/l/m/lm-classicflyhood-azure-hr-2.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/l/m/lm-classicflyhood-chillired-hr_copy.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it07010_product_grafterbrushingboots_cranberry_1.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/l/m/lm-classicflyhood-iceblue-angle-hr3000x4000.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it04813_product_loireflyhood_chilli_1.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/c/ice_blue_saddle_pad.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/l/m/lm-loiresatin-flyhood-grey-hr_1.jpeg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05145_studio_youngridermiameshbaselayer_ember_0001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it06808_studio_youngriderclassiquebaselayer_huntergreen_002.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it09479_studio_youngriderclassiquebaselayer_gooseberry_0001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/c/o/colourit07162_studio_hallelightweightbaselayer_rosemary_001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it06807_studio_youngriderlongslevebaselayer_chilly_001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it07156_studio_classiquebaselayer_damson_001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it09488_studio_youngriderrayeribbedbaselayer_bramble_001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it09478_studio_youngriderclassiquebaselayer_blackberry_001.jpg)
:fill(white):format(webp):quality(70)/https://www.lemieux.com/static/media/catalog/product/i/t/it05830_studio_hallelightweightbaselayer_black_001.jpg)