Sea to Summit Lightweight Dry Sack (set)
Siliconised nylon, 4 L / 8 L / 13 L
4.5 on Amazon
Colour-coded bags turn a duffel from a heap into something you can find things in at 5 a.m., and they keep your down dry when the duffel spends four hours on a bus roof in rain — they are not submersion-proof, so a river crossing still needs care.
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Do not buy this if: Anyone on a tight budget. Two heavy-duty bin liners do eighty per cent of this for nothing.
Everything else we recommend in dry bags & packing, including the ones we think suit a different trekker.
Better than a rain coverOsprey Ultralight Pack Liner
A rain cover fails the moment wind gets under it or water runs down your back; a liner does not — the cost is that you unpack through a roll-top every time you want anything.
