Sidas 3Feet Mid Arch Size:Medium and a large valve means

and a large valve means it's easy to inflate

easily accommodating a wide range of footwear

Upper: Nubuck leather / Vibram® rubber rand and toe cap

and the small fly pocket flap opens to a horizontal shelf

Sidas 3Feet Mid Arch Size:Medium and a large valve meansSpecifically designed for medium arched feet Overview The Sidas 3Feet insoles are specifically designed for people with medium arched feet and are pre shaped to provide maximum support and cushioning. The arches are engineered to offer optimum pressure distribution and improve body alignment, therefore reducing injury and increasing comfort, whatever the activity. Weight (pair): 90 grams Features Key Features Perforations for breathability Forefoot