Enhance your sporting performance with this lovely double tritan material water bottle. It is made from impact and shatter resistant tritan material which are qualities of a durable material, and its tritan material are double walled that ensure that its contents (cold liquids) are kept in optimum condition. This bottle is finished off with this screw on, spill-resistant sip top lid that easily controls fluid intake. ITEM INSTRUCTION: This item is BPA free and FDA approved. It freezer friendly.