SmartWool Men's Propulsion 60 Hybrid Half Zip Shell 1: 100% Poly Shell 2: 100% Merino Wool Lining: 56% Merino Wool 44% Poly Fill: 75% Wool 25% Poly Knit in Vietnam Regular Fit Insulation is lined in Merino for sweat and odor management Secure zip chest pocket with media cord routing; Integrated thumbhole opening for optional additional coverage 11" (28 cm) center front zipper with semi-locking logo slider, draft flap, and chin guard Style: SW016107