Manufacturer photographs: f-stop

f-stop Rju AIR 18L Modular Daypack

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Added to Cambags: 26 September 2026
Bag type: Backpack
Capacity: 18 litres
Exterior: 430 x 300 x 130 mm / 16.9 x 11.8 x 5.1 in (H x W x D)
Weight: 0.645 kg / 1.42 lb (pack only)
Material: 20,000 mm waterproof DuraDiamond exterior; welded waterproof zips; BLOOM carbon-neutral TPE foam padding; IP55 rated
Colours: Anthracite (Black), Arctic (White), Cypress (Green), Magma (Red), Spring Lake (Blue)

About this bag

The Rju AIR is the smallest pack in f-stop's AIR Series. It opens from the top for quick grabs and through a zippered back panel for secure access to the camera compartment. The DuraDiamond exterior is rated to 20,000 mm waterproofness with welded waterproof zips and an IP55 rating, and the mesh-ventilated die-cut back panel and shoulder straps reduce heat build-up. Four GateKeeper attachment points carry extra gear outside. Camera protection comes from a removable f-stop Internal Camera Unit (ICU), sold separately or in f-stop bundles. f-stop recommends the Shallow Small or Shallow Medium ICU. Listed specifications are 18 litres capacity, 43 x 30 x 13 cm exterior and 0.645 kg minimum pack-only weight.