Patagonia's moisture-wicking technical Shirt Our light and fast, moisture-wicking technical trail-running top has Capilene® Cool Lightweight fabric in front and breathable mesh in back for high-output activities. Fair Trade Certified™ sewn. Features Set-in sleeve construction with underarm gussets for chafe-free comfort and full range of motion Strategically taped seams for reduced chafing when worn with a pack or vest Contrast mesh shoulder and back body panels allow for ventilation and breathability Easy-hang locker loop for air drying; HeiQ® Fresh durable odor control Tagless neck for itch-free comfort Reflective logo on left chest and center-back neck Fair Trade Certified™ sewn 88 g (3.1 oz) Size & Fit Model is 183 cm (6'0") and wearing a size Medium Materials Heathers: 2.7-oz 100% polyester (37% recycled) double knit. Stripes: 2.3-oz 100% polyester (83% recycled) double knit. Panels: 2.6-oz 100% recycled polyester mesh. All with MiDori® bioSoft for added wicking and softness, and HeiQ® Fresh durable odor control. What is Sustainable? Recycled polyester Fair Trade Certified™ sewn View The Footprint Chronicles