Most shoe regret comes from one mistake: judging a pair by how it feels for the first thirty seconds. A shoe can feel fine standing still and become painful by the end of a workday. These seven checks take about five minutes and catch most problems.

1. Try shoes later in the day

Feet swell slightly through the day, so an evening fitting is closer to how the shoe will feel during real use. If you are buying for long office hours or a wedding, this matters more than usual.

2. Wear the right socks

Bring the socks you will actually wear. Formal shoes are usually worn with thin socks, sneakers with thicker ones. The wrong sock changes the fit by more than people expect.

3. Measure both feet

Most people have one foot slightly larger. Fit the larger foot, and use an insole or lacing adjustments for the smaller one. Do not rely on the size you bought last time, because sizing varies between styles and brands.

4. Leave about a thumb’s width at the toe

Stand up and press down at the front. You want roughly a thumb’s width of space between your longest toe and the end of the shoe. Your toes should be able to spread and wiggle without touching the top.

5. Check the heel

When you walk, the heel should stay put. A little movement in a brand-new leather shoe is normal. If your heel lifts clearly with every step, the shoe is too big or the shape does not suit your foot.

6. Check the width

The widest part of your foot should sit in the widest part of the shoe, and the sides should not pinch. If your foot is broad, say so at the start. A wider last often solves what looks like a length problem. Several of our customers with wide feet have found their loafers this way.

7. Walk, do not just stand

Walk the length of the floor, turn, and climb a step if there is one. The shoe should bend where your foot bends, at the ball of the foot. If it creases in the middle of the arch or feels stiff at the forefoot, it will tire you.

Genuine leather softens and shapes to your foot over the first few wears, so a snug but comfortable fit is acceptable. Synthetic uppers stay close to their original shape, so they must feel right on day one. Ask which material you are trying.

Come and test it in person

At Icon Soley, size trials are free and nobody minds how many pairs you try. If you have persistent heel or arch pain, a doctor or podiatrist is the right person to see, and a good fit helps but does not replace medical advice.