The very latest in technology combines three separate layers of impact resistance with a unique arch-support system to ensure the walking comfort and proper alignment you need to keep exploring all day long. Velcro©-backed disks in three different densities interchange at the arch to let you customize the level of support you need, helping alleviate plantar fasciitis and heel pain. Featuring a deep heel pocket for extra stability and an antimicrobial top layer. Sizes S, M, L, XL, XXL. May need to trim insoles to fit.