13 June 2026 · 6 min read

The Belt, The Upgrade, The First: The Difference

The Belt, The Upgrade and The First share one aviation buckle. Here is exactly what separates the three Fly-Belts. Free shipping worldwide.

Five Fly-Belts aviation belts worn side by side, the collection across different trousers

Fly-Belts exists in three forms, and they all rest on the same object: a real aviation buckle in aircraft-grade aluminium, on an aviation strap. The Belt at 59 € is a single finished belt. The Upgrade at 79 € is one buckle with two interchangeable straps. The First at 109 € is the full set: three complete belts, each with its own buckle, in a single order. The difference between them is not quality. It is range.

That buckle is the reason all three exist. The lift-lever lap belt was common in the first decades of mass-market cars, then disappeared from them in the early 1970s when push-button buckles took over. In aviation it stayed, certified under standards like TSO-C22, because the cabin asks for something light, corrosion-resistant and instantly legible. We took that buckle and redesigned it to live at the waist of a pair of trousers rather than across a cabin seat. Everything else is a question of how much of it you want.

The Belt: one belt, the whole idea

The Belt is a single finished piece: one model from the eight in the collection, in the width you choose. POLAR in black, TRANSATLANTIC in navy, SILK ROAD in sand, and five others, each tied to a flight route. Nothing comes apart, nothing gets swapped. You pick a colour and you wear it. At 59 €, it is the most direct way into the object, and for many people it is the only form they ever need.

The Upgrade: one aluminium buckle with two interchangeable aviation straps
The Upgrade keeps one buckle and adds a second strap, so a single object covers more than one look.Fly-Belts

The Upgrade: one buckle, two straps

The Upgrade is where the object starts to move. You keep a single buckle and choose two interchangeable straps, both in the same width, which slide through that one buckle and swap in seconds. Two colours, one belt to pack. It suits the way a lot of people actually travel now, carrying one bag and a small wardrobe that has to stretch, and it suits anyone who would rather own one considered thing in two finishes than two separate belts. At 79 €, it is the first tier built around change rather than a fixed colour, and it costs 19 € less than buying two separate belts.

The First: a full set of three complete aviation belts, each with its own aluminium buckle
The First gathers three complete belts, each with its own buckle, the collector form of the object.Fly-Belts

The First: the full set

The First is the complete collection in one order: three full belts, three routes, each with its own aluminium buckle. Nothing is shared and nothing waits its turn, three independent belts ready to wear. Each one arrives in its own fabric pouch inspired by business class amenity kits, so the set stays together or becomes three separate gifts. Three belts cover a wardrobe on their own. At 109 €, it is the most generous way to own Fly-Belts, and the one that looks most like a collection from the start.

The three at a glance
 The BeltThe UpgradeThe First
Price59 €79 €109 €
Aluminium buckles11, shared3, one per belt
Straps included123
Interchangeable strapsNoYes, in secondsNot needed, complete belts
Widths to choose48 / 38 mm48 / 38 mm48 / 38 mm
Fabric pouch1 pouch1 pouch3 pouches, one per belt
Lifetime buckle warrantyYesYesYes
Free worldwide shippingYesYesYes
Best forA first, direct pieceOne belt, two looksGift or collection

Same buckle as on the plane, redesigned for a waist. The only choice left is how far you want to take it.

Fly-Belts

So which one

Read it as range, not rank. If you want the object in its simplest, most direct form, The Belt is the answer. If you want one belt that changes with you, The Upgrade gives you two straps on one buckle. If you want the whole thing at once, as a collection or for a moment that deserves it, The First is the full set. One buckle design from the plane, three ways to live with it.