Japanese cooling compression stockings for sleep Designed to support the pelvis, shape the buttocks while you sleep & lift the slack part of the knee Features a four-stage pressure design: ankle 21 hPa, calf 16 hPa, thigh 11 hPa, foot 9 hPa Adopts NICECOOL fibers with cooling retention to prevent heat build-up Provides a cold contact feeling at -4 degrees that lasts for 12 hours With a mesh weave design on the knees Breathable, stretchy, comfortable & relaxing Made in Japan Suitable for home & sleep during summer Size details: S-M: Height 145-160cm; Butt 80-93cm; Thigh 45-53cm; Calf 32-38cm; Ankle 19-23cm M-L: Height 150-165cm; Butt 85-98cm; Thigh 50-60cm; Calf 36-42cm; Ankle 21-25cm