The felt soles are non-slip, so you can enjoy water sports with your child with peace of mind♪ I've only used them a few times, so they're in good condition and look great, but the name I wrote on the side of the sole is slightly visible. Sole Material: Felt Shaft Height: Ankle Outer Material: Neoprene Closure Type: Lace-up Size: 19cm Material: Nylon Jersey (3mm) Sole Material: Felt (13mm felt sole) Color: BK, Shape: Round toe Uses: Fishing, Ayu tabi (round toe), river shoes, river trekking, canyoning, shower climbing, rock fishing boots, diving, marine boots, snorkeling These boots have felt soles that are strong on slippery rocks, and the 13mm thick felt soles provide a firm grip on rocky terrain. They are lightweight and highly flexible, making them easy to walk and move in. They can be widely used as diving boots for beach diving on rocky shores, river shoes for river trekking, shower climbing, and canyoning, as well as fishing shoes such as Ayu tabi and fishing shoes.