Leatt Rucksacks

Fit, Harness Systems and Protection Standards

The harness is where Leatt earns its reputation. Their chest harness system works by pulling the pack tight across your sternum via an adjustable sternum strap and shoulder assembly that's designed to distribute load without any reliance on a hip belt. That matters more than it sounds. On technical descents - loose Welsh slate, steep Gritstone rolls in the Dark Peak - a waist belt can dig in, restrict movement, or simply pop undone mid-run. Leatt's approach keeps the pack planted against your back through shoulder and chest contact alone, which means your hips stay free to move the bike underneath you. Getting the fit right is straightforward: set the shoulder straps so the pack sits high on your back, then dial the chest strap to the point where the shoulder straps stop angling outward. Snug, not tight. It shouldn't compress your breathing on the climb.

The AirFit impact foam sits in a dedicated spine channel and is CE certified at either Level 1 or Level 2 depending on the model. Level 1 is the baseline - adequate for most trail riding and enduro days out. Level 2 offers higher impact attenuation and is worth considering if you're racing or spending time on consequential lines where a back hit is a realistic outcome. The foam panel is removable, which matters for washing (more on that below) and means you can also upgrade or replace it independently if needed. Looking for a pack specifically designed around water carrying capacity? Head over to our dedicated Leatt Hydration Packs page for bladder-equipped models.

Leatt Rucksack Hierarchy: Cargo vs. Core

Leatt's range is structured around volume, and the choice basically comes down to how long you're riding and how much you need to carry. At the compact end, packs in the 1.5L to 3L cargo bracket are built for short, fast sessions - think bike park laps or a quick blast on your local loop where you need your phone, a bar, and maybe a mini tool. They're trim, they don't flap about, and the reduced bulk keeps them out of your way when you're throwing the bike around. If you're riding with a Leatt body armour setup underneath your jersey, a slimmer pack is usually the call.

Step up to the mid-range and you're into day-trail territory - packs that'll swallow a waterproof jacket, a full tool roll, a pump, snacks, and still leave room for a bladder sleeve. These tend to include more considered tool routing inside the main compartment, keeping your multi-tool from jabbing the same pocket as your phone. The CleanTech/TwinLite tube routing system on hydration-compatible models threads your drinking tube cleanly through the harness so it doesn't flap across your chest or catch on branches mid-trail.

At the top of the range, the larger-volume haulers - 14L and above - are for backcountry days, bikepacking overnighters, or anytime you're away from the van for a full day in the hills. These models tend to include integrated rain covers stowed in a base zip pocket, upgraded back protector levels, and more structured organisation. You pay for that extra spec in weight, but if you're out on the Galloway Forest trails in mixed weather with no bailout option, the integrated rain cover earns its keep. Compared to something like an EVOC rucksack at a similar volume, Leatt's integrated protection is a genuine differentiator - EVOC leans harder on hydration engineering, while Leatt bakes the armour in from the start.

If you're after a lighter, more trail-casual option without the protection focus, CamelBak rucksacks and Dakine rucksacks are worth a look - both offer solid hydration-first designs at various price points. But if back protection is non-negotiable for you, Leatt is doing something the others simply aren't.

Surviving UK Mud: Durability and Maintenance

A Leatt pack will see some grim conditions if you ride through a British winter. Abrasive grit and clay mud are the main culprits for long-term wear, and the zippers take the worst of it. Mud dries in the teeth and wrecks the slider mechanism over time. The fix is simple but needs to be regular: after a muddy ride, rinse the zippers with clean water, work the sliders back and forth a few times to flush the grit out, then - once dry - run a silicone-based lubricant along the zip teeth. A clean toothbrush gets into the coils better than a cloth. Do it every few rides through winter and your zippers will outlast your expectations.

The weather-resistant shell on most Leatt packs uses a DWR (Durable Water Repellent) coating to bead water off the outer fabric. It's not waterproof - no DWR coating is indefinitely - but it handles trail splash and light rain without soaking through. To keep the coating working, hand-wash the outer shell in cool water with a technical fabric cleaner rather than bunging it in the machine. Heat and standard detergents strip DWR faster than miles do. Once the coating starts wetting out rather than beading, a wash-in DWR re-treatment will bring it back. For truly heavy UK downpours, the models with an integrated rain cover are the sensible pick.

Critically: remove the AirFit impact foam panel before washing the pack. The foam doesn't respond well to soaking or machine cycles, and you risk compromising both the material and the CE certification performance. Pull the panel out, wipe it down with a damp cloth, and let it air dry separately. The harness buckles - particularly the chest harness system clips - are worth a rinse too, as grit in the buckle mechanism will make them stiff and eventually stop them clicking home cleanly. Pair the pack with a set of Leatt jackets and you've got a coherent wet-weather system that handles what the Pennines throw at you. If you want to round out the kit further, Leatt MTB baggy shorts are built to the same durability standard and worth considering alongside.