Vivobarefoot Women's Ultra III Bloom Barefoot Minimalist Water Shoes Obsidian Size 39 EU/ 8 US Leave no stone unturned. The Ultra III Bloom is a lightweight, versatile amphibious shoe for exploring along the shore. The Ultra III Bloom is for barefoot adventure-seekers who want to get fully immersed in nature. With an open-honeycomb design made using Bloom® foam (made from 10% algae biomass), these amphibious shoes let you explore in and out of the water with grip, flexibility and full barefoot feeling. Stripped-back soles for barefoot living — so you're never too far from nature, even in the city. For natural stability, natural sensory feedback and natural strength. No insole, bringing you even closer to the ground for the full barefoot experience. Item is new and has never been worn. Smoke free. No box. I always carefully package, box and ship immediately. Reach out with any questions!