S’well Sip Pineapple Bliss Bottle 450ml is a playful take on the practical S’well design that keeps your drinks hot for 12 hours and cold for 24. Composed of double-walled, insulated 18/8 stainless steel, these environmentally friendly bottles also feature a leak-free top for added spill protection - so you can toss your bottle in your bag without worrying about spills or drips!