Frank Green Colour Changing Ultralite 740ml Bottle

Stay cool and hydrated wherever the day takes you with the Colour Changing Ultralite Bottle. Designed to react to every ice-cold pour, this innovative bottle instantly transforms colour, then slowly fades as your drink warms — a fun, eye-catching feature that makes hydration feel effortless and engaging.

With a generous 740ml capacity and an ultralite design, you can carry more water without the extra weight, making it perfect for school, work, travel, sport and everyday use. Crafted from over 95% recycled stainless steel, it delivers premium durability while supporting a more sustainable, planet-first lifestyle.

The signature Flip Straw Lid is fully leakproof and designed for easy one-hand sipping on the go. Simply flip, sip and seal — no spills, no fuss. Made from BPA-free materials that meet FDA and EU safety standards, it’s built for safe, reliable daily use.

Compatible with all frank green lids for added versatility.

Please note: Not compatible with Bottle Bumpers Guards, Cactus Leather Bottle Holder or Car Cup Holder Expander.