- BPA free - Tritan is a material that is clear, transparent, stain-resistant, environmentally friendly and recyclable. - The water bottle has a sliding cup cover, an easy to use design. - Its nozzle has a special leak-proof design, is made of soft silicone and is replaceable. - The water bottle bottom has an anti-slip bottle bottom sleeve design. - All accessories can be removed for cleaning - Come with a strap, so it is easy to carry outside.