The Hydro Flask 21 oz Yosemite National Parks For All Water Bottle in Gray is an insulated stainless steel water bottle with a screw-on lid, perfect for keeping drinks cold for longer periods. With a volume of 21 fl oz, this bottle is ideal for camping, hiking, and other outdoor activities. Showcasing the beautiful design of Yosemite National Parks, this water bottle is a stylish and practical choice for staying hydrated on the go. Made in China, this bottle is a durable and reliable option for anyone looking to reduce their environmental impact.