The Sona 22oz RPET Reusable Sports Bottle is single-wall constructed and features a stylish FSC Certified bamboo lid. The body of the bottle is made from 100% recycled PET plastic. Through a partnership with 1% For The Planet, one percent of sales of EcoSmart products will be donated to nonprofits dedicated to protecting the planet. Hand wash only. This product is not for hot beverages that are over 140 °F.