Crafted with the highest quality materials, HYDY's vacuum-insulated water bottles ensure an enjoyable, chemical-free hydration experience during your favorite activities and hobbies like yoga. The body of our reusable vacuum-insulated water bottles are made with premium 18/8 food-grade stainless steel that ensure the highest quality and safety standards. The bottle is non-toxic, BPA-free, and free from other harmful substances, allowing you to enjoy pure, healthy water without any worries. The double-coated outer layer features a food-grade silicone cover, offering a sweat-free, secure grip and preventing accidental spills during your active yoga sessions and the cap is constructed with food-grade PP polypropylene, providing a secure and leak-proof seal. The optional silicone tea infuser add-on is made from food-grade silicone, which would allow you to infuse your water with your favorite flavors and boost nutrition. With HYDY's commitment to using top-notch materials, you can trust that your water bottle is safe, durable, and environmentally friendly.