Patagonia Men's Boaris Mid Waterproof Casual Sneaker 100% Leather Vibram sole Waterproof full grain leather Trekdry wicking mesh lining is 25% nanobon fibers Poly cork 70% recycled open cell foam footbed with carbon to neutralize odor and cork to move moisture naturally 100% recycled insole provides support and protection underfoot Stitched outsole construction provides durability while minimizing the use of solvents and adhesives