Colt 3548

Colt 3548 Prescription Glasses

A clean rectangular frame works at the office, at home and everywhere in between. The Colt 3548 is a men’s rimless titanium rectangular frame, sized 55-18-145, in Black or Gunmetal. You can order it with single vision, progressive or bifocal lenses made to your prescription. It belongs to the Colt collection.

Choosing your Colt 3548 colour

Black. Black is a deep, solid black. Black suits every hair colour and frames the face with confidence.

Gunmetal. Gunmetal is a dark, smoky grey metal. It is a great match for cooler skin tones and a crisp, tidy look.

Each colour is shown in the gallery, so you can compare them side by side before you decide.

Shape and style

Rectangular lenses suit round and oval faces, adding a bit of definition. The rimless design is as light and minimal as glasses get.

Titanium is one of the lightest frame materials around, which makes it a great choice for all-day wear.

The Colt 3548 is a great everyday frame: smart enough for work and relaxed enough for the weekend.

How to wear it

Short hair and a clean shave make the frame shape stand out; with longer hair or a beard it reads as more relaxed.

Frame size and fit

With 55mm lenses, this is a larger frame that suits wider faces. The 18mm bridge is average. The 145mm arms are on the longer side, which suits larger heads. Across the lenses and bridge it measures about 128mm.

The easiest way to check is against glasses you already love. Most frames show their size inside the arm; if yours are close to these, you are in safe territory.

Lens options for the Colt 3548

Your optometrist’s prescription will usually tell you which of these you need:

• Progressive lenses for clear vision at every distance without swapping pairs.
• Single vision for one job done well: driving, reading or desk work.
• Bifocal if you like a clearly marked reading section.
• Ready readers when you only need help close up.

The 36mm lens depth works with single vision, bifocal and many progressive lenses. Stronger prescription? A high-index lens keeps things thin and light. An anti-reflective, scratch-resistant coating is worth adding too, especially if you drive at night.

Ordering online is easier than you think

All you need is a current prescription from your optometrist and your pupillary distance (PD), the distance between your pupils. Your PD is often written on your prescription; if it is not, ask your optometrist for it. Pick your colour, choose your lens type, enter your details and add any lens upgrades. If you are not sure about sizing, compare the measurements above with a pair you already own. It only takes a minute and saves any guesswork.

How your glasses are made

Every pair is made to order. Our UK optical lab cuts your lenses to your prescription, fits them into your Colt 3548 and then sends your glasses to you in Australia.

Looking after them

Rinse off dust before wiping, dry the lenses with a clean microfibre cloth, and take your glasses off with both hands so the arms stay straight. For more tips, see our lens care guide.

Questions we often get

Can I get progressive lenses in the Colt 3548?

Yes. The 36mm lens depth gives progressive lenses enough height for all three vision zones.

Can I wear the Colt 3548 for driving?

Yes. Single vision or progressive lenses work well for driving, and an anti-reflective coating helps cut glare from headlights at night.

Is it a large frame?

Yes. With 55mm lenses it suits wider faces.

What does rimless mean?

There is no frame around the lenses. They are held by the bridge and arms only, which makes the glasses very light.

Who glazes my lenses?

Our own optical lab in the UK. Your lenses are made to your prescription and fitted into the frame before your glasses are sent to you.

Want to compare? See more men’s glasses and prescription glasses.