IronBackpack Pro 45L compared with the Reyllen Venture 35L backpack

Reyllen Backpacks: Sizes, Prices, and a 45L Alternative

Reyllen's Venture is 35L at $141 and the Pro is 28L. Sizes, specs and how they compare to a 45L gym backpack at $99.95.

IronBackpack Pro 45L compared with the Reyllen Venture 35L backpack

Reyllen makes two main gym backpacks: the Venture at 35 litres and $141, and the Pro at 28 litres. Both have padded laptop compartments — the Venture around 15", the Pro up to 16" — and duffle-style openings. Neither reaches 45 litres. The Venture works out to $4.03 per litre against $2.22 for a 45L pack at $99.95.

Reyllen is a functional-fitness brand that most people find through rope handles and grips rather than bags. The backpacks are a smaller part of the range, and they are aimed squarely at CrossFit and HYROX athletes.

The range

Model Volume Price $ / litre Laptop Opening
Venture Backpack 35 L $141 $4.03 ~15", padded Duffle-style
Pro Backpack 28 L Not verified Up to 16" Clamshell
RX3 Backpack Not published Not verified Not published Not published

Specs from reyllen.com, checked 16 August 2026. Prices vary by regional storefront (reyllen.com, reyllenusa.com, reyllen.eu) — check the US site for US pricing.

Where Reyllen is strong

The duffle-style opening on the Venture. A wide mouth beats a top-loading tube for finding things in a gym bag, and Reyllen went with it deliberately.

The EVA foam back panel doubling as the laptop compartment. Two jobs from one component — it stiffens the back and protects the device. Neat engineering.

Reinforced corner handles. Small detail, but corners are where gym bags fail first when you drag them off a locker-room bench.

The Pro is cabin-friendly. Reyllen states cabin-friendly dimensions on the 28L, which matters if you fly to competitions.

Genuine functional-fitness credibility. This is a brand that competitors actually use, not an apparel label that added a bag.

What to weigh before buying

35 litres is the ceiling. The Venture is the largest Reyllen backpack. For a HYROX or CrossFit competition day — two pairs of shoes, a belt, sleeves, wraps, a jump rope, a change of clothes, nutrition — 35 litres is workable but not roomy.

$141 for 35 litres is $4.03 per litre. That is above the five main 45L packs, which run $1.89 to $2.89.

Regional pricing is confusing. Reyllen runs separate UK, EU and US storefronts with different pricing. Confirm you are on the US site before comparing.

No published defect warranty on the product pages.

Side-by-side

Spec Reyllen Venture 35L IronBackpack Pro 45L
Price $141 $99.95
Volume 35 L 45 L
Cost per litre $4.03 $2.22
Laptop ~15", padded EVA back panel 17" dedicated padded sleeve
Opening Duffle-style wide mouth 180° clamshell, lays flat
Separated compartments Admin pockets, bottle pockets 5 separated compartments
MOLLE / patch panel Not published Yes, 2 patches included
Load rating Not published 20 kg / 44 lb
Warranty Not published Limited lifetime
Free shipping Not published Every order, no minimum

Specs from each brand's own site, checked 16 August 2026.

Which one fits you

Buy the Reyllen Venture if you want a functional-fitness brand with real credibility in the sport, you like the duffle-style opening, and 35 litres covers your kit.

Buy the IronBackpack Pro 45L if you want 10 more litres for $41.05 less, a published 17" laptop fit, a full 180° clamshell, MOLLE for a belt that will not fold, and a limited lifetime warranty.

See the IronBackpack Pro 45L — $99.95 →

More: full 45L comparison · CrossFit brand backpacks compared

FAQ

How many litres is the Reyllen backpack?

Reyllen makes the Venture at 35 litres and the Pro at 28 litres. The Venture is the largest backpack in the range. Neither reaches 45 litres, the standard size for a full competition loadout with two pairs of shoes and a lifting belt.

How much is the Reyllen Venture backpack?

Reyllen lists the Venture 35L at $141.00 USD. Pricing differs across Reyllen's UK, EU and US storefronts, so confirm you are on the US site before comparing. That works out to roughly $4.03 per litre.

Does the Reyllen backpack have a laptop compartment?

Yes. The Venture uses an EVA foam back panel that doubles as a padded laptop compartment holding devices up to around 15 inches. The Pro 28L fits devices up to 16 inches. Neither publishes a 17-inch capacity.

What is a bigger alternative to the Reyllen backpack?

The IronBackpack Pro 45L offers 45 litres — 10 more than the Venture — with five separated compartments, a 180° clamshell opening, a 17" laptop sleeve and MOLLE webbing at $99.95, which is $41.05 less than the Venture. It also publishes a limited lifetime warranty.

Is the Reyllen backpack good for HYROX?

Reyllen markets the Venture 35L to CrossFit and HYROX athletes and the brand has real credibility in the sport. Whether 35 litres is enough depends on your loadout — two pairs of shoes alone can take 16–20 litres, before a belt, sleeves, wraps, a rope, clothes and nutrition.

10 more litres, $41.05 less.
Shop IronBackpack Pro 45L — $99.95 · See all backpacks

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