Manufacturer photographs: f-stop

f-stop Lotus 4 CORE 28L Pack

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Added to Cambags
26 September 2026
Bag type
Backpack
Capacity
28 litres
Exterior
520 x 320 x 230 mm / 20.5 x 12.6 x 9.0 in (H x W x D)
Weight
1.3 kg / 3.0 lb
Material
20,000 mm waterproof DuraDiamond exterior; Hypalon base; 70D nylon ripstop lining with 500 mm PU coating; BLOOM algae-based dual-density EVA foam
Colours
Anthracite (Black)

About this bag

The Lotus 4 CORE takes an interchangeable f-stop ICU in its main compartment and leaves room for travel essentials. The DuraDiamond shell, abrasion-resistant Hypalon base and weatherproof zips protect the load, and an internal aluminium frame with multi-point suspension, ergonomic shoulder straps, adjustable sternum strap and padded hip belt spread the weight. Storage includes dual-sided zip pockets in the top lid, a vertical zip pocket on the rear, a zip pocket and drop-in stash pocket on the hip belt, and side mesh pockets for bottles or a tripod, with compression straps and multiple attachment points. Camera protection comes from a removable f-stop Internal Camera Unit (ICU), sold separately or in f-stop bundles. f-stop recommends the Shallow Medium or Shallow Small ICU; the slimmer depth is not intended for Slope or Pro ICUs. Listed specifications are 28 litres capacity, 52 x 32 x 23 cm exterior and 1.3 kg weight.

What fits inside

A camera kit in a Shallow Medium or Shallow Small ICU, plus travel and hiking essentials; side pockets take a bottle or tripod.

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