Hydration Compatible - these are bags and packs that are hydration bladder compatible. They have special outlets and sleeves to allow for a bladder and tube. The shoulder straps also have attachments to secure the tube while moving.
Rain Cover - this product comes with a rain cover, which can be placed over the main body of the rucksack to keep your posessions dry in the event of rain. When not in use the rain cover can be stowed in an easy-access external pocket on the rucksack.
Product Sizing Chart
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