Features of the Hydro Flask 32oz Wide Mouth w/ Straw Lid Ideal size for all-day hydration Fits most backcountry water filters TempShield(TM) Insulation keeps beverages cold up to 24 hours and hot up to 12 hours Durable 18/8 Pro-Grade Stainless Steel construction BPA-Free and Phthalate-Free Convenient finger loop for easy carrying Durable rubber straw for faster flow BPA-Free