To create the Men's A2B Polo Shirt, Arc'teryx had to bridge the cavernous gap between city life and mountain life. Taking pages from the vast tome of knowledge it has acquired through years of outdoor performance, Arc'teryx infused this special polo with some technicality you wouldn't expect or see elsewhere. The inner layer features a Polylain merino wool jersey with filament yarn polyester for added strength and moisture management merino wool keeps your temperature regulated and even boasts some anti odor properties. The outer layer sports Diem stretch polyester, an anti wrinkle, permeable fabric that packs well and wicks additional moisture. Diem fabric also comes standard with a 50 UPF rating for long days past the 18th hole. Beside the mechanical stretch properties, the A2B polo sports a trim fit and generous length for the ultimate in athletic movement and coverage.