Product name: Foot drop orthosis Product model: FO-119 Product color: black Please check size Map clear to choose correct size. Product size: S/M/L/XL Size S: suitable for US Men's shoe size 4~5.5 , US Women's shoe size 4.5~6.5 Size M: suitable for US Men's shoe size 6~7.5 , US Women's shoe size 7~8.5 Size L: suitable for US Men's shoe size 8~9 , US Women's shoe size 9~10 Size XL: suitable for US Men's shoe size 9.5~12 , US Women's shoe size 10.5~13 Product function: fix and support the ankle joint Washing instructions: wash by hand Main material: nylon, polyester, polyurethane, polyethylene, etc. Scope of application: weak foot muscles, foot drop caused by peroneal nerve palsy, ankle varus or valgus caused by hemiplegia, sequelae of pediatric anesthesia, Gulambarre syndrome Feature: 1.Helps stabilize the ankle and maintain a neutral foot position 2.Helps support a Drop Foot deformity following nerve injury 3.Low profile design enables the device to be comfortably and easily fitted into footwear 4.Adjustable straps allow for a comfort fit 5.with soft terry cloth fabric, which would not hurt your leg,good flexibility, not easy to deform 6.with inflatable airbag, more comfortable to wear This is the best way to protect the ankle without compromising athletic ability