Collegiate Trek Tumbler color_BKP-CLW 100% Leak-Proof: Straw lid is

100% Leak-Proof: Straw lid is designed to prevent leaks and spills when in the closed position

The Summit Tumbler lid adapts your favorite water bottle into a tumbler

Not intended for Hot Liquids: Pressure may build in the bottle causing leaks or spills

Double Wall Insulation: Keeps beverages cold for hours

Also includes two straws

Collegiate Trek Tumbler color_BKP-CLW 100% Leak-Proof: Straw lid isCupholder Friendly: Tapered shape makes it the ideal cup Take Us With You wherever you go. Leakproof: Comes with flip lid to prevent spills. Also includes two straws. Double Wall Insulation: Keeps beverages hot or cold for hours. Durable: Made of premium 18 8 stainless steel. Pat Pat Pend.