Evo Modular Flotation tails add 6″ of on-demand flotation to any Evo snowshoe. Simply slide them on and twist down the adjustment knob for added flotation in deep snow, or when carrying a heavier pack.____________________________________________________________________Unrivaled Versatility: On-demand flotation allows you to select a smaller primary shoe for added agility in packed conditions.Packable: Light and low-profile for easy packing on any trip.Easy: Simple attachment system lets you attach and remove tails without removing shoes.____________________________________________________________________Weight per pair (Standard):12 ozWeight per pair (Metric):0.34 kgWeight (Standard):12 ozWeight (Metric):0.34 kgWidth (Standard):7 inLength (Standard):11.5 inFrame material(s):Plastic