Bogs Mesa - Adjustable Calf - Women's Boots : Black : Hit the elements in cozy fashion and style, With the Bogs Mesa - Adjustable Calf. ; 100% Waterproof. ; Constructed with 5mm Neo-Tech waterproof insulation. ; Slip on style for easy on and off. ; Boot shaft easily adjusts to fit different size calves . ; DuraFresh natural bio-technology activates to fight odors. ; BOGS Max-Wick evaporates sweat to keep feet dry. ; Generously cushioned footbed for all day comfort. ; Athletic lightweight flexible midsole with impact cushioning protection. ; Textile and synthetic upper. ; Flexible rubber traction outsole. ; Comfort rated to 5°F/-15°C. ; Imported. Measurements: ; Weight: 1 lb 14 oz ; Circumference: 15 in ; Shaft: 13 in ; Product measurements were taken using size 9, width B - Medium. Please note that measurements may vary by size. | Bogs Mesa - Adjustable Calf Women's Boots Black : 12 B - Medium, Synthetic/Textile