Upgrade your Calix Tumbler with the Hydroboost Cap!

Transform any Calix tumbler into a versatile, leak-proof powerhouse! The Hydroboost Cap isn’t just an add-on—it’s a game-changer. Whether you’re hitting the gym, hiking trails, or rushing through a busy day, this sleek accessory turns your tumbler into a high-performance shaker bottle or sporty hydration companion—all while adding 250 ml (8.4 oz) of extra capacity to keep you fueled longer.

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Don’t Just Hydrate—Elevate.