Features of the Atlas Helium BC 23 Snowshoe Helium Decking includes a unique design that sheds Snow to keep them lightweight, while also creating traction Packflat(TM) Binding, designed to pack flat when not in use, can accommodate larger mountaineering and SnowBoard boots and the single z-strap holds your foot securely Includes the Helium BC Crampon which is the lightest in the Helium series and helps provide bite in variable Snow conditions Aluminum Traction Rails Are curved and set in close to the foot to provide sidehill traction and stability 19Adeg heel lift helps to ease fatigue if you happen to find yourself on slightly steeper terrain 23in. deck