Waterproof

Lightweight

Comfortable

Product of the Year - OIA awards 2026 | Backpacks and travel luggage category winner - OIA awards 2026

Syclon XP 40L Waterproof Pack

Product of the Year - OIA awards 2026 | Backpacks and travel luggage category winner - OIA awards 2026

£180.00

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Syclon XP 40L Waterproof Pack

£180.00

Info
Delivery and returns Delivery
Rab Promise

Fully waterproof and highly ventilated, this 40L pack slashes weight and gets the air flowing, ideal for ultralight missions in unpredictable weather.

Waterproof. Lightweight. Comfortable.

Activities:
Adventure travel & backpacking
Day hiking
Trekking

Weight:
890g / 1lb 15.3oz (Size M-L)

Backpack fit:
Standard fit

Dimensions:
63 x 34 x 28cm

Back length:
19-20" / 46-51cm

This unique guarantee promises to support you before, during and after your adventure, combining gear advice, aftercare services, and our Rab Warranty, to help you get more out of your gear.

For more information, please visit our Rab Promise page.

Features

Weight890g / 1lb 15.3oz (Size M-L)
Main fabric40D high tenacity nylon (100% recycled)
Secondary fabric100D (85% recycled) high tenacity nylon with Spectra® Ripstop
Volume40lt / 2441cu.in
Dimensions63 x 34 x 28cm
Back systemAEROFIT™
Back length19-20" / 46-51cm
Product codeQAQ-22

Every gram of the Syclon XP has been carefully considered, shaving weight wherever possible to create an ultralight pack for minimalist hikers. Weighing in at under 900g, it’s also fully waterproof and tested to IPX4, which further reduces weight by eliminating the need for dry bags or a rain cover. The body-contouring, ventilated AEROFIT™ carry system allows plenty of airflow to your back and provides a seamless fit, keeping you comfortable and your load stable at fast paces and over long distances. Ready for the range of conditions you might encounter on the mountain from high heat to driving rain, the Syclon XP is built for alpine hut-hopping and thru-hiking long-distance trails.

Waterproof main compartment designed to keep your kit dry in heavy rain, with waterproof fabric and taped seams.
Roll top entry allows the pack to expand and compress as you work through your supplies.
Seamless comfort with a ventilated, body-hugging AEROFIT™ back system that encourages warm air to escape.
The zipped rear compartment is great for your water bladder or for keeping a wet shell separate to your dry gear.
Handy front stash pocket and side water bottle pockets, made from a robust, durable fabric.
Access essentials on the move with easy-reach chest strap storage, hipbelt pockets, and space for a soft flask.
Fix your walking poles to the pack using the attachment points when you need hands free.
Cinch the pack secure with the side compression, and base compression that doubles as storage for your sleep mat or tent.

Material Facts

Syclon XP 40L Waterproof Pack

	Recycled	PFAS PFAS This column shows where fluorocarbons (PFAS) may still be present in our products. No PFAS means we’ve phased out all intentionally added PFAS from the corresponding component and are compliant with current EU and US legislation.
Total content Total content The total percentage of an item's weight that is recycled.	13%	No
Fabric Fabric Some of our products use multiple fabrics, especially waterproof items. This figure shows the total percentage of an item's fabrics which are recycled, calculated by weight.	49%	No
Main	70%	No
Yarns	100%	No
Coatings	0%	No
Second outer	66%	No
Second Fabric Yarns	84%	No
Second Fabric Coatings	0%	No
Mesh	8%	No
Foam	0%	No
Frame	0%	No
Components	1%	No
Zips Zips This figure includes zipper tape, teeth, sliders, and pullers, showing their total recycled content by weight.	2%	No
Trims Trims This section shows the recycled content by weight for all components added to our products that are not captured in the other categories. For example, cord locks, pocket linings, buttons, cords, size labels, and eyelets.	2%	No
Renewable energy
Product manufacturing	0%
Manufactured in Vietnam
*For more information about our methodology see www.rab.equipment/material-facts
QAQ-22 Version 09/2025

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We’re helping you to make informed choices by giving you the raw data. Clear. Concise. Honest.

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Tech and features.

Features

Weight890g / 1lb 15.3oz (Size M-L)
Main fabric40D high tenacity nylon (100% recycled)
Secondary fabric100D (85% recycled) high tenacity nylon with Spectra® Ripstop
Volume40lt / 2441cu.in
Dimensions63 x 34 x 28cm
Back systemAEROFIT™
Back length19-20" / 46-51cm
Product codeQAQ-22

Waterproof main compartment designed to keep your kit dry in heavy rain, with waterproof fabric and taped seams.
Roll top entry allows the pack to expand and compress as you work through your supplies.
Seamless comfort with a ventilated, body-hugging AEROFIT™ back system that encourages warm air to escape.
The zipped rear compartment is great for your water bladder or for keeping a wet shell separate to your dry gear.
Handy front stash pocket and side water bottle pockets, made from a robust, durable fabric.
Access essentials on the move with easy-reach chest strap storage, hipbelt pockets, and space for a soft flask.
Fix your walking poles to the pack using the attachment points when you need hands free.
Cinch the pack secure with the side compression, and base compression that doubles as storage for your sleep mat or tent.