How to Choose a Locking Steel Collar

A steel collar is the piece people agonise over most, and reasonably so: it is worn at the throat, it is often worn longest, and unlike a soft collar it will not stretch to forgive a bad decision. Four things decide whether you choose well — how it locks, how heavy it is, how it fits, and how it reads in daylight. Get those right and the collar is a joy; get them wrong and it lives in a drawer.

The lock

Steel collars close one of a few ways, and the mechanism matters more than it looks:

Integrated pin-lock — a lock built into the band itself. Nothing dangles at the throat, nothing snags, and the key leaves with whoever is not wearing it. This is what we build into the Sovereign and Regent: closed, the throat carries one clean line of steel.
Padlock through a ring — cheaper and more visible, with a lock swinging at the front. Functional, less refined, and heavier on the collarbone.
Threaded or press clasp — tool-free, discreet, best on lighter day-wear pieces.

If the collar is meant to be worn for real stretches of time, favour an integrated lock — there is nothing pressing into the skin but the band.

The weight

Weight is presence. A collar is measured in more than millimetres:

Slim, day-wear — around 180–320 g, reads as jewellery, worn out the door. Our Eclipse is this tier: a stranger sees an ornament and no one else does.
Mid, everyday — a flat 20 mm band with real substance but no strain, like the Sovereign.
Heavy, deliberate — a wide, thick band you feel with every breath. The Regent is about 0.8 kg of steel, meant to be worn on the days that mean it rather than forgotten.

There is no "best" weight, only the one that matches how and when you intend to wear it. Many people end up owning two: one that disappears in company and one that does not.

The fit

This is where steel is unforgiving and a tape measure is your friend. Measure the neck at the base, where the collar will actually sit, snug but not compressed — and measure at the time of day and temperature you expect to wear it, because necks swell in heat and in the evening. Our collars are sized for men's and women's necks rather than a single universal circumference. The full method takes five minutes and is written up in the fit guide; measure before you break the hygiene seal and a wrong size is still exchangeable.

The grade

Since it rests against skin longest, a collar is the piece where steel grade and finish matter most. Buy 304 at minimum, passivated, with radiused edges — and be sceptical of "nickel-free" claims, which are usually marketing rather than metallurgy. The reasoning is laid out in 304 vs 316.

In short

Pick the lock for how long you'll wear it, the weight for how present you want it, the size from a real measurement, and the grade from an honest spec. Do that and the collar is the easiest piece to love in the whole range. Browse the three tiers side by side in collars.