[High Compatibility]Perfect for hydroflask straw lid standard mouth 18 21 24 and many other such as Simple Modern 12 17 20 24 32 64 , Classic 12 18 27 40 64 , Rehydrate Pro 17 25 , WaterVault Water Bottles 24 , Standard Mouth 21 . [Durable & Safe]Made of high-quality material, All material is -free. Flexible handle improves grip comfort, makes straw lid a perfect standard mouth sports water bottle lid for hydroflask standard mouth lid replacement accessories. [Leakproof & Silence]More Fit Sealing Ring, so you can place hydroflask water bottle in a backpack or anywhere for jogging or outdoor travel. No need to worry about water leakage. The suction straw lid is tightly connected to your hydroflask water bottle so you 't have to worry about making unpleasant sounds when drinking. Blistering day, One-handed flip your hydroflask top to enjoy a cool drink. Flexible handle makes it easy to your hydroflask water bottle anywhere for jogging or outdoor travel. Material: pp+silicone colour: black Package Contents: 2 x Water cup lid 4 x straw 2 x Cleaning brush Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.