Our commitment to quality starts with the materials. We have chosen Polypropylene (PP) and Polyethylene (PE) for our water mugs, which are known for their durability, lightweight, and resistance to impact. The product can pass the FDA, LFGB, CA65 test, and BPA free. The PP/PE construction is also easy to clean, maintains hygiene, and prevents any residue that could alter the taste of your drinks. https://www.soopot.com/product/plastic-mug-bottle/