The LaSportiva Tarantula is a comfortable shoe that?s easy to get on and off in a flash. The unlined leather upper is excellent for moisture management and super comfortable for all day wear. The shape is round and higher volume for comfort yet still aggressive enough to perform where needed. The highly adjustable closure system fits many different foot types and shapes well.Sole: 5mm FriXion RS rubber.Weight: 10.23oz (290g).