HOKA ONE ONE. 1105590LRBDB. HUPANA FLOW WOOL. LUNAR ROCK BLANC DE BLANC. The Hupana Flow Wool has everything you love about the Hupana Flow with a new wool upper. Made using smooth natural fibers the Hupana Flow Wool upper works to keep you warm when it s cold out and cool when it s hot out. And for added ease the Hupana Flow Wool features no-tie elastic laces for a snug fit and easy on and off. Responsive and soft to the touch this shoe looks good and feels good all day long.