Steelo Infuser Bottle is made of PET material, USFDA Approved PET (Polyethylene Terephthalate) Material. PA Free. Finger grips and a sports spout makes it fun to use while drinking in the car, exercising, at the office, outdoors, back to school, running, or the gym. You can also hang the strap on your belt or backpack. Material : Container is made of PET material, USFDA Approved PET (Polyethylene Terephthalate) Material. PA Free. Safety and Care : Not For Hot Filling, Wash with Luke Warm Water, Do Not Scrub with Scrubber. Keep your water cooler. Reduce the "bottle sweat" you get from most single wall bottles. Our tailored insulated neoprene sleeve does it all. Custom fit, leaving a stable base to prevent the toppling you get with other infusion bottles sleeve design. Unbreakable, Food Grade, Odourless, Hygienic.