The humble sports cap has become a mainstay in thru-hiker packs for a reason - this plastic free flow sports cap allows for easy drinking on the go and can attach to any bottle with a 28mm thread, like our 28mm Vesica and Hydriams. Sold individually so there's no need to purchase a single use plastic bottle to grab one the next time yours
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Cool idea could be better
When I put it on the thru hiking bottle I liked it a lot the seal could have been better but one good fall on it head and it completely goes poof maybe a heavier plastic for the cap