Collection: Persol Unisex Square Sunglasses

Welcome to our Persol unisex square sunglasses collection, a shared-wardrobe edit of squared Persol frames designed to look right on anyone, whatever their style. Unisex square sunglasses are the practical, endlessly wearable heart of the Persol range: clean geometry, gender-neutral proportions and the Turin house's century of craftsmanship in a single frame you can pass between partners, borrow from a sibling or simply choose because it suits you. Every pair here is genuine and supplied by Ardor Eyewear, an authorised UK Persol stockist.

What makes a Persol unisex square frame

Persol founded its reputation in 1917 in Turin, originally supplying protective eyewear to pilots and racing drivers, and that functional DNA still shows. A unisex square design keeps the balance neutral: medium-to-generous lens widths, straight brow lines and evenly weighted temples that flatter a wide spread of face shapes and head sizes. In this edit you will find versatile references such as the PO3292S, PO3348S and PO3375S, the elegant PO3355S and PO3199S, and the distinctive PO3333S "Elio", each squaring the frame in its own way, from soft panto-squares to crisp, upright silhouettes.

Three signatures make these instantly recognisable as Persol. The Meflecto flexible-stem system lets the temple arms flex to the head for a gentle, secure hold; the sculpted Supreme Arrow hinge reinforces and decorates the temple; and many models use thick, optically pure crystal lenses that resist scratches and give famously sharp, clean vision. These are details you feel and see, not just marketing.

Who unisex square sunglasses suit

The appeal of a unisex frame is its adaptability. Because the proportions avoid extremes, a square Persol works across the widest range of wearers:

1. Round and oval faces gain definition from the angular corners.
2. Longer faces are balanced by a frame with generous vertical depth.
3. Broader faces should look for a wider lens and a longer temple so the frame sits in proportion.

Reading the size stamp on the inside of the temple is the quickest way to judge fit: the first number is the lens width in millimetres, the second the bridge, the third the temple length. A 52–55mm lens width is a comfortable middle ground for most adults. If you would like to compare squared styles from other houses too, browse our broader square-shape sunglasses collection, or explore the whole Persol line-up at Persol sunglasses.

Materials and finishes

Persol works in premium cellulose acetate, cut and polished by hand to a deep, warm shine. The house is best known for its Havana tortoiseshell, a mottled blend of honey, amber and coffee that suits almost every skin tone and reads equally well on men and women. Alongside Havana you will find gloss black, smoke crystal, translucent tones and metal-accented builds where an acetate front meets a slim metal browbar and the Supreme Arrow hinge. Because the colourways are classic rather than seasonal, these frames stay relevant year after year, an important consideration for a shared pair.

Lenses, UV and prescription options

Lens choice defines how a pair performs. Across this collection you can expect solid tints for everyday wear, gradient lenses that shade the eyes while keeping the lower field clear, and polarised versions that neutralise glare from tarmac, water and glass, which is why Persol has always appealed to drivers. All lenses deliver full UV400 protection against UVA and UVB. For glare-sensitive wearers, our polarised sunglasses edit is worth a look. Many of these frames can also be fitted with prescription lenses, turning a favourite pair into prescription sunglasses; see our prescription sunglasses service to begin. If you and your partner have different needs, one might choose tinted sun lenses while the other adds prescription glazing to the same model.

Styling a frame you both can wear

The genius of a unisex square Persol is how neutrally it dresses. Havana tortoiseshell warms denim, tailoring, knitwear and linen alike, sliding easily between a man's weekend look and a woman's smart-casual outfit. Gloss black sharpens monochrome and evening dressing for either wearer. Because the shape is timeless rather than loud, it works for city commuting, driving, travel and long summer weekends without ever looking like it belongs to one person in particular. That versatility is exactly why unisex square frames are among the most-borrowed sunglasses in any household.

Buying with confidence at Ardor Eyewear

As a UK retailer of genuine designer eyewear and an authorised Persol stockist, Ardor Eyewear guarantees authenticity on every order, with official case, cloth and documentation included. We provide free UK shipping, and prescription orders are glazed and dispatched in roughly seven to ten working days. A 14-day returns policy lets you reconsider (customers cover return postage). With this collection priced from around £115 to £295, a shared pair of genuine Italian sunglasses represents genuine value. Prefer optical frames? Our designer glasses range holds the same authenticity promise, and dedicated men's sunglasses shoppers will find plenty more there too.

Looking after your sunglasses

Clean the lenses with the supplied microfibre cloth and a little lukewarm water; skip alcohol-based wipes, which can dull acetate. Return the frames to their case between wears and resist perching them on your head, which slowly stretches the Meflecto arms. If the fit loosens, any optician can gently readjust the flexible temples to restore that secure, comfortable grip.

Frequently asked questions

What does unisex mean for these sunglasses?

It means the proportions and colours are gender-neutral, so the frame looks equally at home on men and women. The fit is guided by your face size, not by gender.

Are these Persol frames authentic?

Yes. Ardor Eyewear is an authorised UK stockist, and every pair is 100% genuine and arrives with official Persol packaging and documentation.

Can two people share one pair comfortably?

Yes, thanks to the Meflecto flexible-stem system, which adapts to different head sizes. An optician can fine-tune the fit in seconds if needed.

Do these frames take prescription lenses?

Most do, including single vision, varifocal and tinted options. Visit our prescription sunglasses service to place a glazed order.

What size suits most adults?

A lens width of around 52–55mm, printed on the temple arm, is a comfortable unisex fit. Larger widths give a bolder look; smaller widths a more compact one.

Are polarised lenses available?

Yes, several models offer polarised lenses that reduce glare from roads, water and glass, on top of the full UV400 protection every pair provides.

How fast is UK delivery and what about returns?

Standard orders ship promptly with free UK delivery; prescription orders take around seven to ten working days. Unworn frames can be returned within 14 days, with return postage paid by the customer.