I wore these outside for about an hour, but they're too big, so I'm selling them. They're almost like new, but please refrain from purchasing if you are overly concerned about condition. These are premium flip-flops from KEEN, developed with the functions needed for walking in mind. They feature a performance sole with excellent cushioning and stability. ■Color: BK/VA (black-vapor) ■Weight (per foot): 4.94oz / 140g ■Heel Height: 1.38in / 35mm ■Drop: 0.43in / 11mm ■Materials: Waterproof leather upper with special nubuck processing, impregnated with silicone liquid Quick-drying lining for active use Non-marking rubber outsole that doesn't leave marks or rubber residue on the ground ■Features: Aqua Grip Environmentally friendly leather Contoured Fit that conforms to the shape of the foot for a comfortable and snug fit Foam midsole for lightweight and cushioning Foam insole with arch support for shock absorption and all-day comfort Aqua Grip rubber provides slip resistance on wet surfaces. Premium leather manufactured in a Leather Working Group certified tannery is environmentally friendly, preventing water pollution and protecting water sources. Eco Anti-odor, an antibacterial and odor-resistant treatment made from natural ingredients, is used.