[High Compatibility] Perfect for Hydro Flask straw lid standard mouth 18 oz 21 oz 24 oz and many other brands like Simple Modern Ascent 12 17 20 24 32 64 oz, Klean Kanteen Classic 12 18 27 40 64 oz, Rehydrate Pro 17 25 oz, WaterVault Water Bottles 24 oz, The Coldest Water Standard Mouth 21 oz. [Durable & Safe] Made of high-quality material, all material is BPA-free. Flexible handle improves grip comfort, making the straw lid a perfect standard mouth sports water bottle lid for Hydro Flask standard mouth lid replacement accessories. [Leak-proof & Quiet] More fitting sealing ring, so you can place the Hydro Flask water bottle in a backpack or anywhere for jogging or outdoor travel. You don't have to worry about water leakage. The suction straw lid is tightly connected to your Hydro Flask water bottle so you don't have to worry about making unpleasant noises when drinking. On a scorching summer day, flip your Hydro Flask top with one hand to enjoy a cool drink. Flexible handle makes it easy to hang your Hydro Flask water bottle anywhere for jogging or outdoor travel. Material: pp + silicone color: black Package contents: 1 x Water cup lid 2 x straw 1 x Cleaning brush Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.