The Men's Acrux2 FL Approach Shoes from Arc'teryx are an entirely new type of hiking and backpacking shoe. These lightweight shoes feature a durable one piece upper with a polyurethane coating to help repel moisture. Inside the shoes are interchangeable Gore Tex liners that can be taken out to facilitate washing, drying, and keeping them clean. Rubberized soles on the liners allows them to be used as hut or camp booties as well. 3D molded Ortholite footbeds offer plenty of cushioning to keep your feet happy throughout the day. Vibram MegaGrip soles with RockGrip anti slip lugs ensure stable, secure footing for your entire hike.