The Thermoflask Insulated Stainless Steel 4 Lid Combo Pack makes it easy to sip without slowing down. Mix and match the interchangeable straw or chug lids with the bottles to find the perfect combination for any activity. Keep your beverages ice cold all day in the vacuum insulated stainless-steel bottle. The double-wall bottles prevent outside temperatures from affecting the inside beverage temperature, so your drink stays just the way you like it—all day long. The 40oz/1.1L size is great for a big thirst, minimal refills, or sharing. Whether you’re headed to yoga, the gym, or just out and about, this bottle will keep you refreshed and hydrated all day long.