Featuring a striped retro style canvas upper on a sandal bottom the Sanuk Flashback Sidewalk Surfer for men allows your foot to spread and absorb shock naturally. The "Barefoot Untechnology" sandal bottom allows your foot to bend and flex the way nature designed you to walk while the loose fitting upper allows your foot to spread so it can absorb shock naturally. This strengthens small muscles in the foot which support your arch and encourages you to walk correctly. Breather holes on the sidewall keep the foot cool while a reinforced toe protects the digits.