Whether your day takes you to the beach or just the backyard, the Medium Press-In Straw Lid keeps your favorite drink at the ready and easy to sip. Features: a Fits 10 oz Rocks, 12 oz Mug, 16 oz Tumbler, 20 oz Tumbler, & 22 oz Tumbler a Easy press-in fit for splash-proof dependability a Easy removal tab a Flexible straw is durable and easy to clean a Straw is easy to trim to fit your favorite Hydro Flask drinkware a BPA-Free a Dishwasher safe a Reviews & Questions