This update to the Aiki Slip On is influenced by the power of the waves. The wave pattern on the upper creates movement within the lines without losing control, much like how martial arts requires balance and control to harness and direct strength and movement. The slip on style of the Ryu, with its elasticated sections make this a supremely easy shoe to wear, providing all round comfort in a lightweight model. The solid rubber outsole provides great durability to ensure the shoe delivers maximum performance. Upper:Synthetic leather with velcro closure. Midsole:Die cut EVAOutsole:Solid rubber