... . 3.Material:PP+TPR/TPR+POE / Silicone. Item nameSwimming Diving Set MaterialMaskLens: Tempered Glass , PC , PS.Frame: ABS,PCStrap:PVC ,SiliconeSkirt ... provide stability & less resistance3. Quick release, quick-adjust buckle Diving Set for Swimming, Surfing or Diving, Low Price, Well Packing