Spring Hinges Explained: Comfort and Fit for Everyday Glasses

Spring hinges are small sprung joints between the frame front and the temples that let the arms open a few millimetres past their normal position and then snap back. They make glasses more forgiving: the frame adapts to slightly wider heads, grips more evenly behind the ears and copes better with being pulled off one-handed. They do not replace a correct frame size, but they make a well-sized frame feel easier to live with.

What a spring hinge actually is

A standard hinge is a simple barrel joint: the temple swings open until it hits a stop, and that is it. A spring hinge (sometimes called a flex hinge) hides a tiny coiled spring inside the temple, right behind the joint. When the arm reaches the normal open position, the spring lets it travel a little further outward, then pulls it gently back.

You can test this at home. Open the glasses fully, then press one temple outward with a fingertip. If it gives a little and returns on its own, you have spring hinges. If it stops hard, the hinge is standard.

Why they make glasses more comfortable

Most of the pressure you feel from glasses comes from the temples squeezing the sides of the head. A spring hinge spreads that squeeze into a light, steady tension instead of a hard grip at one point. Many wearers notice three things:

• A more even hold. The temples follow the shape of the head, so the frame sits straight without pinching above the ears.
• Less stress on the frame. Pulling glasses off with one hand, pushing them up into your hair or sleeping with them on the sofa bends a standard hinge. A sprung one gives way and returns.
• A little extra width. If your head is at the upper end of a frame's range, the spring adds a few millimetres of room. It cannot turn a narrow frame into a wide one, so check the numbers in our frame size guide first.

Spring hinges vs standard hinges

Who gets the most from spring hinges

Spring hinges are a good match if you recognise yourself in any of these situations:

• You wear one pair from morning to evening and swap between screen, meetings and the commute.
• You often take glasses off with one hand, or park them on top of your head.
• Your head is on the wider side of a frame's size range and standard frames feel tight after a few hours.
• You want sunglasses that survive bags, car door pockets and beach days.
• You are buying a first pair and want a frame that tolerates a learning curve.

If you prefer an ultra-thin metal look, a standard hinge is perfectly fine. Comfort then depends more on good adjustment, so keep our face shape guide and sizing pages close.

Frames with spring hinges in our range

Several of our everyday eyeglasses pair spring hinges with light materials. Flad is made from flexible TR90 that bends rather than snaps, Neal is a lightweight plastic rectangle, and Horace combines a metal eyewire with a coloured brow plus adjustable nose pads.

FladShop nowNealShop nowHoraceShop now

Browse more in our TR90 frames and metal frames collections, where many styles are built for all-day wear.

Spring hinges in sunglasses

Sunglasses get handled more roughly than everyday glasses: they are pushed up, hung on a shirt collar and pulled off every time you step indoors. That makes a sprung joint especially useful. In our acetate sunglasses, Shelton, Felix and Fabiano all combine a full-rim acetate front with spring hinges, and Caroline uses metal spring hinges inside mixed-material temples. Each can be ordered with prescription sun lenses made to order.

How to look after spring hinges

1. Open and close with two hands. The spring is forgiving, not indestructible. Two hands keep both temples aligned.
2. Do not use the spring as a stretch. If a frame only fits when the temples are pushed fully outward, it is too narrow. Choose a wider size instead.
3. Store them folded in a case. Leaving glasses open on a desk invites knocks that strain the joint.
4. Watch for wobble. If a temple feels loose or no longer springs back, have the small hinge screw checked rather than continuing to wear it loose.
5. Keep the joint clean. Rinse with lukewarm water now and then so sun cream and dust do not build up around the spring.

Shop this guide

SheltonShop nowFelixShop nowFabianoShop now

Find a frame that flexes with your day

Spring hinges are one of the simplest upgrades for everyday comfort, especially on a pair you rarely take off. Explore our eyeglasses and sunglasses collections and look for spring hinges in the product details. Add your prescription in a few clicks with our lens selector.