THERMOS &ONDO Non-binding Warm Socks Crew Length &ONDO 22-24cm Black Like a THERMOS vacuum flask, it stores heat and keeps you warm. From the inside and outside, make the temperature your ally and spend the cold winter days comfortably. ⚠️ As a result of comparison with "Marude Kotatsu Socks" (Socks Like a Heated Kotatsu), THERMOS socks were found to raise foot temperature more! (Compared to THERMOS "&ONDO Brushed Warm Room Socks") These are a thin type, so if you can't wear such thick socks with your shoes... but your feet are cold! If that's you, please try these ☆ Sorry, no price reduction. Color: Black系 (Black-based) Pattern/Design: Plain