Neoprene foot covers that warm your feet with tourmaline's negative ion and far-infrared effects, with non-slip soles for peace of mind. For those who suffer from cold feet For those who want to reduce their winter air conditioning costs I bought a bunch to have spares, but I'm selling them because my cold feet have improved and I no longer need them. - Product Name: Pokkari Foot Cover - Material: Neoprene, Nylon - Features: Warming effect for feet, non-slip - Washing Instructions: Hand wash recommended (I used the washing machine with a laundry net, and it was fine) - Size: M-L size (approx. 23-25cm) Selling as a set of 2 at a discounted price. If you only want one, it's 1500 yen (including shipping), so please contact me in the comments section. I haven't listed it, but I also have one S-M size (approx. 21-23cm). If you want the smaller size, please also comment. Combinations of one large and one small are also possible.