Redi-Thotics Slim 3/4 Length Orthotics More Comfort – More Performance-Medical Grade Semi-FlexibleSlimmer Design fits all types of footwear.Provides moderate arch support to help stabilize your feet.Heel cup catches and absorbs the shock forces created with each step.Reduces metatarsal and transverse arch bruising. Redi-Thotics Slim uses a semi-form, thin Plasti-Flex shell, so the orthotics fit even the tightest style shoes. Anti Bacterial top cover that „breathes“ circulating air throughout the shoe to ventilate the foot with each step. Should you experience continued foot discomfort, open sore or pain, consult your doctor or podiatrist and discontinue use. Returns accepted on unused products. Thank you for shopping. We specialize in great customer service. Shipping is free and mailed first class within 24 hours!