Size: men 8-13 (1 pair) cushion and comfort: profoot stress relief insole helps to cushion sore feet and tired legs with every step you take. Walking on stress ball material can help strengthen weakened foot muscles by overuse of injuries. Relief: profoot stress relief insole is 2x lighter making it feel like a stress ball for your feet triggering a sensation of a statefort throughout the day. Allevates: profoot stress relieving slow recovery technology material helps weakened foot muscles affected by overuse or injuries feel relaxed with every step. Trim to fit forfort. Founded in 1986 by a chiropractor who listened to his patients' complaints about pain solution products; inspired by their feedback he developed a range of footcare foot care products like heel insoles & arch support inserts that addressed their issues. Profoot is a family-owned footcare business based right here in brooklyn ny. We're part of one of the most pedestrian cities in the world with millions of feet hitting the pavement every day. Our motto: "the better your feet feel the more you can do!