Brand new, still in it's packaging.

It's been in our gear storage for a while hence the cosmetic markings. The advice is always to wash before use anyway.

The photos indicate which flasks this is compatible with.

Some manufacturer bumf:

An easy way to top off your Tumbler.

Whether your day takes you to the beach or just the backyard, the Medium Press-In Straw Lid keeps your favorite drink ice cold and easy to sip.

Product Benefits

• Medium Press-In Straw Lid fits 12 oz Mug, 12 oz Outdoor Tumbler, 16 oz All Around™ Tumbler, and 20 oz All Around™ Tumbler

• Honeycomb Insulation™ helps keep cold drinks cold and hot drinks hot

• Easy press-in fit for splash-proof dependability

• Flexible straw is durable and easy to clean

• BPA-Free and Phthalate-Free

• Lifetime Warranty

Packaged securely, posted with Royal Mail Tracked services.