Please see the self-introduction. Shimano SHIMANO Geo-Lock Flex 3D Cut Felt Tabi Limited Pro (Nakamaru Saki Wide) FT-012S / Ayu Tabi Ayu Tomozuri Goods Ayu Tomo Ayu Size: 4L Ayu tabi with Geo-Lock sole that allows you to stand firm. ● Adjustable center belt ● Comfortable inside ● Geo-Lock sole system ● Reinforced rubber toe guard to protect toes from water pressure and impact from stones ● Velcro is placed to prevent slippage, preventing zipper slippage ● 6mm grooves provide a reverse bending effect on the soles of the feet, and the Geo-Lock Flex 3D cut felt sole provides high grip that conforms to the round stones on the riverbed. ■ Material / Upper: SBR (Surface: Nylon), synthetic rubber Sole: Polypropylene, stainless steel ■ Released year: 2019 This is a rare 4L size. I usually wear 30cm shoes and they fit. As you can see from the wear on the felt, I haven't used them much at all. I've only worn them twice. However, since they are not unused, please refrain from purchasing if you are concerned.