Material: Body: Polyester/polyurethane; Aqua titanium X30; Shoe instep size: [Thick L size]: Foot size 10.6 inches (27 cm) and above; Tape width approx. 0.6 inches (16 mm); Inner circumference of the tape: 7.5 inches (19 cm); Toe size: [Common size S, M, L size] Tape width: approx. 0.4 inches (10 mm). An instant comfort band that complements your walking. Supplement your posture from your feet. Easy to support posture just by spraying it. This product is developed using Phitens water-soluble metal technology (aqua titanium). Aqua Titanium is a brand with water-soluble metal technology developed by Phiten. Made in Japan.