KEEN Women's Maderas Boat Fashion Shoe 100% Lightweight Canvas Synthetic sole Heel measures approximately 0.75" Vulcanized (molded) construction eliminates the use of adhesives, which makes the shoe vegan-friendly. Natural canvas upper features recycled aluminum eyelets. Molded, rubber footbed with built-in arch supports cushions your feet in lightweight comfort. Dual side elastic inserts stretch for a comfortable fit. Non-marking, rubber outsole provides durability and light traction.