These Airsol green, unisex insoles are made of open-cell foam. They fit sizes from 5 to 6.5 for men and 7 to 8.5 for women. The compression-resistance insoles have a round toe, moulded heel, and arch support. They measure 3 length x 3½ width x ½ inches thickness and prevent fatigue, foot odour, foot pain, leg pain, and lower back pain.