the Clear Transparent Sky Water Bottle is Made of Eastman Tritan™ Making This Bottle Bpa-Free, Light, Durable & Impact-Resistant. the Bottle is Single-Walled & Holds 650 Ml of Liquid, & It Fits in the Side Pocket of Most Backpacks, as Well as in Most Car Cup Holders. the Twist-On Lid Ensures Easy Opening & Closing, & has a Built-In Carrying Handle. Minimum Quantity: 50