Kapten & Son Fyn backpack in navy with a flap closure and front strap.
Kapten & Son Fyn backpack shown from the front, with a flap closure and front strap.
Kapten & Son Fyn backpack side view showing its depth and adjustable shoulder straps.
Kapten & Son Fyn backpack back view with padded mesh panel and shoulder straps.
Kapten & Son Fyn backpack opened to show its lined main compartment.
Kapten & Son Fyn backpack opened with a laptop and tablet inside.
Kapten & Son Fyn backpack attached to a rolling suitcase handle.
Kapten & Son Fyn backpack close-up showing the padded mesh back and shoulder straps.
Kapten & Son Fyn backpack close-up of its front zip pocket with keys.
Kapten & Son Fyn backpack close-up showing the hook-and-loop flap fastening.
Kapten & Son Fyn backpack in navy, close-up of water-resistant surface, logo and webbing loop
Kapten & Son Fyn backpack opened to show its divided interior and zippered compartments
Kapten & Son Fyn backpack back panel with mesh padding, shoulder strap and adjustable webbing
New arrival

Kapten & Son Fyn Backpack (Navy)

By Kapten & Son
£100.00 GBP
Tax included Shipping calculated at checkout.
Free UK shipping
Orders over £80
Official Stockist
Every brand bought direct
Easy Returns
Within 14 days

900+ Reviews on Trustpilot - Rated Excellent

Kapten & Son's Fyn, a clean, rounded zip-around backpack for work and the commute. A padded 14 inch laptop compartment, a separate tablet sleeve, room for A4 and an inside zip pocket.

Product code: KSD0000000353
Main fabric: 75% rPET, 15% PU, 10% Polyester
Closure: Zip
Size: H39.5 x W28.5 x D12.5 cm, 13 litres

Kapten & Son Reviews

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Find Your Perfect Fit

At Union 22, we want to ensure you get the right fit every time. Our products are categorised into three main fit types to help you make the best choice:

  • Slim Fit – Designed for a tailored look. We recommend going up a size compared to your usual size for the best fit.

  • Regular Fit – A classic, true-to-size fit. Stick with your usual size.

  • Big Fit – Offers a more relaxed, oversized feel. We suggest sizing down for a more standard fit or keep as is for an oversized look.

Already Shopped With Us?

If you've purchased from Union 22 before, you may already know your sizes in the brands we stock. In that case, you can likely stick with the sizes you've previously ordered while following the fit guidelines provided for each product. However, if you're shopping with us for the first time or are unsure about sizing, we highly recommend using the chart below as a reference. Our sizing guide is designed to help you make the right choice and avoid the hassle of returns or exchanges. If you need further assistance, our team is always happy to help.

Size Conversion Chart

Tops: T-Shirts, Polos, Knitwear, Jackets & Coats

Use the table below as a general guide to converting sizes:

UK Size EU Size US Size Chest (inches) Waist (inches)
XS (34) 44 34 34-36 28-30
S (36) 46 36 36-38 30-32
M (38) 48 38 38-40 32-34
L (40) 50 40 40-42 34-36
XL (42) 52 42 42-44 36-38
XXL (44) 54 44 44-46 38-40
3XL (46) 56 46 46-48 40-42
4XL (48) 58 48 48-50 42-44
5XL (50) 60 50 50-52 44-46
6XL (52) 62 52 52-54 46-48

Bottoms: Trousers, Jeans & Shorts

UK Waist EU Size US Waist
28 44 28
29 45 29
30 46 30
31 47 31
32 48 32
33 49 33
34 50 34
35 51 35
36 52 36
37 53 37
38 54 38
39 55 39
40 56 40

Fit Type Recommendations

To help you pick the right size, refer to the fit type listed on each product page:

  • If the product is labeled Slim Fit, go one size up for a comfortable fit.

  • If the product is labeled Regular Fit, order your normal size.

  • If the product is labeled Big Fit, go one size down for a standard fit.

Additional Tips

  • If you’re between sizes and prefer a looser fit, consider sizing up.

  • For a tailored or fitted look, opt for the size recommended based on the fit type.

  • If you're unsure, feel free to contact our customer service team for personalised advice.

Need Help?

For any sizing queries, contact us at info@union22.co.uk or visit our Liverpool store to try on our pieces in person.

We hope this guide helps you find the perfect fit. Enjoy shopping at Union 22!