These Boots Feature A Thick 1/4"Neoprene With Circle Knit Nylon Lining, Double Lock Hook & Loop Straps. Magnets Are Sewn Into Lining Relaxing Muscles And Joints, Promotes Healing. These Boots Feature A Thick 1/4"Neoprene With Circle Knit Nylon Lining, Double Lock Hook & Loop Straps. Magnets Are Sewn