Buy a roll of tape to hold the lid in place. I have this bottle and a larger bottle from XLAB. Both are badly designed. The threads on the body and lid are small and do not match the design. Any good hit will cause the lids to pop out instantly. I wasted my money. The opening is narrower than the body, making it difficult to pack and remove items when needed. I've ridden a bike for 45 years but this is absolutely one of the worst purchases I've ever made.
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