Cotswold Aquarius - RS335 System Rucksack
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Shop Stock Check
10+ in stock at our Berners Hall shop Only left in stock at our Berners Hall shop
Not in stock at our Berners Hall shop
In stock at our Berners Hall shop
Not in stock at our Berners Hall shop
10+ in stock at our Billericay shop Only left in stock at our Billericay shop
Not in stock at our Billericay shop
In stock at our Billericay shop
Not in stock at our Billericay shop
Introducing the first of a new generation of Cotswold Aquarius luggage — where British craftsmanship meets modern modular design.
Big Capability in a Compact Frame
Don’t let the size fool you. The base backpack offers an impressive 33.5L of total storage, spread across its spacious main compartment and four external pockets. Perfect for a finely tuned kit list — and easily expandable for longer sessions.
Expand Your Capacity
Thanks to the Molle Attachment System, this backpack can quickly transform into a multi-day backpack using our bespoke range of ‘System Attachments’ (sold separately).
We’ve built the bag around the official MOLLE (Modular Lightweight Load-carrying Equipment) webbing standard — meaning any MOLLE-compatible gear will attach securely and neatly to the exterior. Between the side and front pockets, you’ll also find custom fittings for our exclusive Brew Tubes — padded, insulated, and easy to access. Perfect for brew kits, stoves, hooks baits, spare spools, bottles, or flasks — anything you need at arm’s reach.
Engineered for Comfort
After extensive testing and customer feedback, we’ve redefined comfort for this size of pack.
Increased padding for long-wear comfort
Refined strap placement for balanced weight distribution
Exclusive tensioning buckle system for instant on-the-go adjustment
Proudly Made in the UK
Every backpack is designed, developed, cut, and assembled in our UK workshop. Built to last, backed by our “Luggage for Life” guarantee, and finished with the signature Cotswold Aquarius attention to detail.
Dimensions
Main Compartment (25L): 35 × 23 × 30 cm
Side Pockets (2.5L each): 17 × 29 × 5 cm
Front Pocket (3.5L): 23 × 29 × 5 cm
UK Orders Under £25
- Standard Delivery (3 - 5 working days): £5
- Next Day Delivery: £10
- No Rush Delivery (allow 7 working days and receive a 5% off promo code for your next order): £5
Products over 1.5m incur a £3 oversized surcharge to UK mainland customers. Spending £150 exempts the oversized item surcharge.
UK Orders Over £25
- Standard Delivery (3 - 5 working days): £0
- Next Day Delivery: £5
- Next Day Delivery (before 12pm): £10
- No Rush Delivery (allow 7 working days and receive a 5% off promo code for your next order): £0
Products over 1.5m incur a £3 oversized surcharge to UK mainland customers. Spending £150 exempts the oversized item surcharge.
Non-UK Mainland
- Orders Under £50: £5
- Orders Over £50: £15
Unfortunately we are not able to ship to Jersey (JE) or Guernsey (GY).
EU
We ship to the EU using Global-E. Please refer to their website for further information.
Please click here for our full delivery details.
To qualify for a full refund or exchange, please ensure your returned item is unused, in its original packaging, and reaches us within 30 days of receipt. Returns made after this period (unless the product is faulty or damaged) may not be processed. Items that have been used where no fault is present are not eligible for a return.
We reserve the right to refuse returns or charge a deduction from any refund for items that are returned without their original packaging, or have evidence of being used where no fault is present.
If you have an account on our website, you can initiate the return using by clicking on My Returns on the My Account page. Our team will promptly respond to the return, and upon acceptance, you will receive a returns form.
If you don't have an account on our website, you can download and complete a returns form, and include it with your return package so our team knows who the return is from and what action you’d like us to take.
Ensure you have entered the correct Reason for Return and Action Required codes on the returns form. Incorrect details may lead to delays or shipping costs being deducted from the refund.
Please click here for full returns details.
