JoBolt 517 Aviator Boots – The Complete UK Guide for 2026
There is a boot that does not care whether you are heading to a meeting, a muddy bridleway, or a weekend market in the rain. The JoBolt 517 Aviator boot was not designed to look tough. It was built to be tough — by the same Estonian factory behind NATO’s legendary M77 combat boot, and the same manufacturer that has worked with Dr. Martens and Rossignol.
Here is everything you need to know.
What Makes the 517 Aviator Different
Most leather boots at this price point cut corners somewhere — synthetic lining, cheap outsoles, or a water-resistant coating that washes off after three wears. The 517 does not.
- Water-repellent genuine leather upper — naturally tough and weather-resistant from day one
- Direct-injected PU outsole — built for city pavements and woodland trails equally
- Genuine leather lining — breathable and natural, no synthetic shortcuts
- Anatomical antibacterial washable insole — proper support for all-day wear
- NATO AQAP 2110 and ISO 9001 military quality standards — the same checks used for armed forces footwear
- Handcrafted in Tartu, Estonia, Europe
One honest note: the 517 has a leather lining with no extra insulation. In freezing temperatures, wear warmer socks. For the other nine months of the British year, they are an outstanding all-day boot.
The Full Range – All Colours & Styles
The Aviator range comes in two silhouettes — the classic ankle-height 517 and the taller high-cut 516 — across multiple colourways. Every pair shares the same NATO-grade construction.
517 Aviator – Classic Ankle Boot
White
Clean, minimal white leather. Surprisingly versatile and genuinely tough. Shop White →
Brown
Rich brown leather that gets better with every wear. The most classic colourway in the range. Shop Brown →
Black
The go-with-everything black. City commute to country walk without changing your boots. Shop Black →
Red
Bold red leather for those who want their boots to make a statement. Shop Red →
516 High Aviator – Tall Boot Silhouette
High Black
The taller silhouette with the same military-grade build. Extra ankle support, bolder look. Shop High Black →
High Brown
Rich brown in the high-cut silhouette. A serious boot for serious terrain. Shop High Brown →
High Red
The boldest option in the range. Red high-cut leather that turns heads without sacrificing durability. Shop High Red →
Sizing Guide
The 517 Aviator boots fit true to size — no need to size up or down.
| UK Size | EU Size | Foot Length |
|---|---|---|
| UK 3.5 | EU 36 | 23.0 cm |
| UK 4.5 | EU 37 | 23.5 cm |
| UK 5 | EU 38 | 24.0 cm |
| UK 6 | EU 39 | 24.5 cm |
| UK 6.5 | EU 40 | 25.0 cm |
| UK 7.5 | EU 41 | 25.5 cm |
| UK 8 | EU 42 | 26.0 cm |
| UK 9 | EU 43 | 27.0 cm |
| UK 9.5 | EU 44 | 27.5 cm |
| UK 10.5 | EU 45 | 28.0 cm |
| UK 11 | EU 46 | 28.5 cm |
Frequently Asked Questions
Are the JoBolt 517 Aviator boots waterproof?
The upper is made from water-repellent genuine leather, which handles rain and damp conditions very well. They are not fully waterproof in the way a membrane boot is, but for everyday British weather — commutes, walks, markets, light trails — they perform excellently.
Who makes the Aviator boots?
They are made by Samelin in Tartu, Estonia — the same factory behind NATO’s legendary M77 combat boot and a manufacturer that has worked with Dr. Martens and Rossignol. Built to NATO AQAP 2110 and ISO 9001 standards.
Are they suitable for winter?
The leather lining has no extra insulation, so in freezing temperatures JoBolt recommends wearing warmer socks. For spring, summer, and autumn British weather they are an outstanding all-day boot.
Do they run true to size?
Yes — the 517 Aviator boots fit true to size. Use the sizing table above or measure your foot length in centimetres to find your EU size.
Are they unisex?
Yes — fully unisex, available in EU 35–48 across all colourways.
How do I care for them?
Wipe down with a damp cloth after muddy or wet wear. Dry naturally away from direct heat. Apply a leather conditioner or water-repellent protector spray every few months. The insole is washable — remove and wash separately as needed.
The Bottom Line
At £129.99 with free UK shipping, the JoBolt 517 Aviator is one of the most honest boots you can buy in the UK right now. Military pedigree, genuine leather, true-to-size fit, and a range of colours that covers everything from boardroom to bridleway.
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