Vivobarefoot Opanka Review - A Soft Barefoot Slip On 。Vivobarefoot Opanka I Leather Slip On Shoe Color Black Size 37 Good pre-owned condition some creases on top as shown. Uncage your feet and feel everything. The Opanka II is the simple women\'s slip-on that gives you barefoot freedom every day. No insole, bringing you even closer to the ground for the full barefoot experience. Features • Minimalist outsole: The Minimal Sole offers maximum underfoot sensory feedback natural style. The 4mm sole and signature hexagon tread is made in Portugal with natural rubber blend • No Insole: No insole, bringing you even closer to the ground for the full barefoot experience • Leather footbed: Take your socks off and enjoy the feeling • Made in Portugal Materials • Upper: Vamp, Quarter, Tongue, Collar, Eyestay(100% Metal Free Leather) • Lining: Collar and Tongue Lining(100% Metal Free Leather) • Outsole: 70% Synthetic Rubber, 30% Natural Rubber Specifications • Weight 151g • Sole Base: 4mm • Tread Depth: 0mm Top Rated Poshmark Seller!