Men's 1/2 Zip Fleece 100 g/m² FUTUREFLEECE™ LT—63% polyester, 37% recycled polyester Slim fit FUTUREFLEECE™ LT features lower-pile full-loop construction and octa-yarns to provide an optimal warmth-to-weight ratio No shoulder seams for reduced bulk and extra comfort while you’re wearing a pack Underarm gussets for better mobility Reverse-coil, #3 center front half zip Flat-locked stitching in key zones for next-to-skin comfort Clean front hem with flat-sewn elastic at rear Flat-sewn elastic cuffs with integrated thumb loops Avg Weight: 145 g (5.11 oz) Center Back: 27.25" The slim-fit Men’s Summit FUTUREFLEECE™ LT ½ Zip features a low-pile version of our full-loop fabric technology that helps minimize weight and optimize body temperature. It’s designed to be worn over a base layer or under whatever insulation the mission calls for. Under-pack comfort is also prioritized with flat-locked stitching and no shoulder seams. The North Face Men's Summit Futurefleece LT ½ Zip