【Engineered for Thermoflask & Takeya Bottles】Designed to match Thermoflask, Takeya, Simple Modern, and IRON °FLASK wide mouth threads. Fits Hydro Flask, Klean Kanteen,Koodee and others with 2.28” diameter 【Space-Saving Ergonomic Handle】Arched handle design hugs the bottle neck, reducing bulk and fitting effortlessly into backpack side pockets, Ideal for active lifestyles, keeping drinks secure whether in your backpack or on the go 【Premium BPA-Free Construction】 Has passed strict safety tests, guaranteeing zero BPA content ， ensuring safe and healthy hydration. pgraded material offers superior drop and crack resistance for long-lasting durability. 【Detachable All-in-One Straw System】 The one-piece straw design enhances sealing and prevents leaks. Straw, nozzle, and seal remove in seconds for thorough cleaning，Extra-long straw trimmable to fit 12-64oz bottles 【Risk-Free Multi-Brand Guarantee】If incompatible with your Thermoflask, Takeya, or Simple Modern bottle, contact us for a Worry free solution，24-hour response time, 365-day warranty replacement straw lid for 2.28" wide mouth water bottles