Recycled aluminum material. Twist on lid. Includes Carabiner. 17oz Aluminum Sports Bottle with Carabiner$14.00PriceColorsQuantityAdd to CartSilver ColorThe Gray color is Silver Metallic not Gray. Return and Refund PolicyALL SALES ARE FINAL AS PROCEEDS ARE DONATED TO CANCER RESEARCH AND CARE PACKAGES FOR THOSE DIAGNOSED. LOVE LIFE HATE CANCERLOVE LIFE HATE CANCER also available. Please call to order.