All the standard MUCK BOOT™ features plus:

Stretch-fit topline binding snugs calf to keep warmth in and cold out
5mm CR flex-foam bootie with four-way stretch nylon, 100% waterproof, lightweight and flexible
Self-cleaning outsole wraps the entire perimeter to provide maximum protection and stability on steep terrain
Additional achilles reinforcement for added protection
Seamless, quick-clean rubber overlay
Added toe protection with a wrap-up toe bumper
Comfort range of sub-freezing conditions to 85°

5mm CR flex-foam bootie with four-way stretch nylon
100% waterproof, lightweight and flexible
Added toe protection with a wrap-up toe bumper
Comfort range of sub-freezing conditions to 85 degrees