Akin to wearing an ultra-thin sleeping bag, this is quite possibly our most versatile garment. “Utility” is the optimal descriptor. Slightly slimmer fitting with built-in functional stretch, the thin yet protective warmth makes this an early spring go-to whether under a nylon shell or worn alone. A fantastic layering piece that simply fortifies every other garment in our arsenal. No one should be without. fit: classic athletic temperature range: 45º to 60º shell: 94% nylon, 6% spandex, full-dull stretch, breathable, semi-water resistant, 115 gsm lining: 95% polyester, 5% spandex, end-on-end stripe peached jersey, 100% recycled polyester insulation, 60 gram fill, w/ 1" horizontal quilting thru + thru hidden on-seam hand pockets lined w/ soft brushed tricot stand-up collar of double layer quilted self-shell material dual closure snap and 1-way molded-zip placket w/ reinforcing blue nylon taslan facing black oxidized Relwen snap hardware, w/ large coil zip applied chest pocket bound lycra hem for clean, durable, and highly functional finish care: machine wash cold, no bleach, air-dry or tumble low, do not iron imported