A tough and rugged pull-on boot that can handle any type of activity. 100 percent waterproof man-made uppers. Four-way stretch shaft material is able to conform to any type of foot and calf. AEGIS antimicrobial treatment on the insole prevents bacterial growth and odor. Non-marking rubber shell and outsole. Temperature rated from 60 degreesF to -40 degreesF. 100 percent vegan. Measurements: Weight: 2 lbs 5 oz Circumference: 14 1 2 in Shaft: 13 in Product measurements were taken using size 8, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.