I don't have experience of USWE packs but on looking online they seem to be reasonably well regarded and not usually discounted to this level.
More of them here:
https://cycletreads.co.nz/collections/hydration-systems-cool…
I don't have experience of USWE packs but on looking online they seem to be reasonably well regarded and not usually discounted to this level.
More of them here:
https://cycletreads.co.nz/collections/hydration-systems-cool…