With the perfect amount of rugged sophistication, the Grotto is a functional and stylish alpine boot. This boot features a slip resistant sole, speed hooks, a padded tongue & collar, and a cushioned insole for added comfort. Padded Insole. TPR Outsole. Slip Resistant. Padded Collar and Tongue. Breathable Lining. Lace up with Speed Hooks. Synthetic Nubuck Upper. Spot clean. Imported.