Inspired by the sneakers that graced mid-century basketball courts, the Center Low-Top sneaker features 10oz. duck canvas, a gum rubber outsole, and signature Posture Foundation insole. P. F. Flyers: Since 1933, P. F. Flyers have been on the feet of countless heroes, and part of the fabric of American history. Posture Foundation Magic Rigid Wedge: A game-changing innovation delivering superior cushioning and all-day support. ​ Durable Construction: Reinforced double stitching ensures long-lasting performance. Canvas uppers with gum rubber soles. Whole and half sizes.