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Thermabuild

Thermabuild | Underseat Cabin Backpack 45L

Thermabuild | Underseat Cabin Backpack 45L

£116.95 GBP
£116.95 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

 Technical Sheet

Material: Oxford (outer) with polyester lining
– Weight: 1.23 kg
– Capacity: 45 L
– Laptop slot: Fits a 16" computer
– Opening: 180° suitcase-style
– Security: Rear zippered pocket
– Features: Vacuum compression system
– Expandable: +5 cm expansion
– Size: 45 × 36 × 20 cm

The Weekender is for those who refuse to pack light  and still refuse to check in. At 45x36x20 cm with vacuum compression technology, it fits under the seat on easyJet, Wizz Air, British Airways and most major airlines, carrying up to 45 litres of clothing, gear and essentials without touching the overhead bin.

A 180° suitcase-style opening means full access to everything you've packed  no more digging. The dedicated 16" laptop slot keeps your tech secure and within reach, while the rear zippered pocket holds your travel documents, cards and keys completely out of sight. Flying Ryanair? Check out our dedicated Ryanair-compliant version  same smart layout, built to fit perfectly under the seat in front.

Need even more space? The built-in +5 cm expansion gives you extra room when you need it, without compromising the bag's structure. Oxford outer shell with polyester lining keeps everything protected, trip after trip.

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Frequently asked questions

How long does delivery take?

Orders are typically processed within 1–2 business days. Delivery times may vary depending on the destination and shipping method. You will receive a tracking number once your order has been shipped.

Do you offer returns?

Yes. We accept returns within 30 days of delivery. Items must be unused and in their original condition. Please contact us before returning an item so we can provide the correct return instructions.

How can I track my order?

Once your order has been shipped, you will receive an email confirmation containing your tracking number and a tracking link.

What happens if I receive a damaged or incorrect item?

Please contact us as soon as possible if your order arrives damaged, defective, or incorrect. We will review the issue and arrange an appropriate solution, such as a replacement or refund.