Sierra Designs Flex Lumbar is One Massive Hip Pack [Review] - Singletracks Mountain Bike News

This oversized hip pack from Sierra Designs holds two water bottles and more gear than many hydration backpacks. We give it a test on the mountain bike trail.

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Sierra Designs Flex Lumbar is One Massive Hip Pack [Review

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Sierra Designs Flex Lumbar is One Massive Hip Pack [Review

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