Cold days and long approaches call for breathable insulation and plenty of venting. Made for multiple activities with chafe-free seams throughout, the Rho Zip Neck is your base layer of choice for steady efforts in cool to cold temperatures. Its zip-down collar regulates extra warmth, while the light next-to-skin fit ensures soft, fleecy comfort as well as excellent heat trapping and moisture wicking. What&';s been updated:The Rho Zip Neck is even comfier than before, with baby-merrow stitching for a seamless inner feel. Technical features Moisture-wicking Breathable Lightweight Versatile Warm and comfortable Collar configuration Low profile collar Construction Torrent(TM) stretch fleece manages moisture and provides light warmth and brushed softness Cuff & Sleeves configuration Thumb holes in cuffs add warmth and coverage Design & Fit Next-to-skin fit for comfort and easy layering Designed for a variety of activities Sustainability Contains materials produced through processes that meet bluesignA(R) criteria This article was treated with an anti-odour biocidal product (Silvadur(TM) ) PFAS (Per- and polyfluoroalkyl substances) Compliant Weight: 197g / 6.9 oz Model: X000010749