<!--ProdInc[170077856]/Mall:[rei_US]--> Ultralightweight 150 g core-spun fabric?nylon yarn wrapped in merino and blended with TENCEL lyocell?combines the softness of merino wool with the durability of nylon Merino wool naturally breathes, wicks away sweat, dries quickly and resists odors Fabric blend also boasts snag- and pill-resistant properties for durability, plus 4-way stretch for ease of movement Flat seams and merrow stitch construction eliminate chafing Machine wash warm with like colors, gentle cycle; use wool wash product; do not twist or wring; remove promptly; do not bleach; tumble dry low; do not dry clean Field-tested on its own and as a base layer while hiking, running, rock climbing, cycling, skiing and camping in diverse climates across the U.S. Made in a Fair Trade Certified factory REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon creditsImported. Technical specs <table border=1 cellpadding=5 style=''border-collapse: collapse;''><!--[--><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Best Use</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Multisport</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Shirt Type</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>T-shirt</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Fabric</th><td class=''tech-spec <img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170077856&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px''>
<!--ProdInc[170077856]/Mall:[rei_US]--> Ultralightweight 150 g core-spun fabric?nylon yarn wrapped in merino and blended with TENCEL lyocell?combines the softness of merino wool with the durability of nylon Merino wool naturally breathes, wicks away sweat, dries quickly and resists odors Fabric blend also boasts snag- and pill-resistant properties for durability, plus 4-way stretch for ease of movement Flat seams and merrow stitch construction eliminate chafing Machine wash warm with like colors, gentle cycle; use wool wash product; do not twist or wring; remove promptly; do not bleach; tumble dry low; do not dry clean Field-tested on its own and as a base layer while hiking, running, rock climbing, cycling, skiing and camping in diverse climates across the U.S. Made in a Fair Trade Certified factory REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon creditsImported. Technical specs <table border=1 cellpadding=5 style=''border-collapse: collapse;''><!--[--><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Best Use</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Multisport</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Shirt Type</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>T-shirt</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Fabric</th><td class=''tech-spec <img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170077856&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px''>