Style and comfort - not a tall order, they're a given with our Donna leather boots! Leather upper Hidden elastic gore for comfort. Full inside zipper for easy on/off Padded insole for added comfort. Flexible, skid-resistant outsole for a better grip 15" shaft height Wide calf: 17 3/8"-20 1/4" shaft circumference Note: Measurements based on size 7 boot. For each full size larger, circumference increases by 1/2" 1 " heel height Wide calf leather boots available in full and half sizes 7-11, 12 M, W, WW