Sock Shoes for Wide Feet: How COOPS Fit and Which Size to Order

A stretch knit upper with no stiff panels can follow a wider foot. The one rule that makes it work: order one letter up.

Woman on an entryway bench slipping on Ash Gray COOPS Low Top sock shoes
The short answer

Yes, COOPS work for wide feet. Order one letter up from your usual size. The knit upper has no stiff panels, so it opens up across the ball of your foot, and the bigger letter gives it room so it doesn’t press.

If you have wide feet you already know the routine. Order the shoe, feel the pinch across the little toe by lunchtime, start the return. Plenty of sneakers come in one standard width, and wide versions, when they exist, often come in fewer colors. So when people ask us whether COOPS fit wide feet, the honest answer is yes, as long as you size the way we describe below.

Why are so many shoes too narrow?

Feet vary a lot more in width than shoe boxes suggest. Research on how people actually fit their shoes keeps finding the same thing. A review of 18 studies found that most of the people studied, between 63% and 72%, were wearing shoes that didn’t match the width or length of their feet, and too-narrow shoes were especially common among older adults.1 In one study of older adults, shoes much narrower than the foot went along with corns, bunions and foot pain.2 Those studies are mostly of older people, but nobody of any age enjoys a shoe that squeezes.

A typical sneaker makes this worse because the shape is fixed. The toe box is stitched and glued around a last, and the upper is reinforced with overlays that don’t give. If your foot is wider than that shape, the shoe wins.

COOPS knit uppers and insoles laid out on a grey surface
The knit upper has no stiff overlays, which is why it can follow a wider foot.

How do COOPS fit a wide foot?

A COOPS upper is knit from bamboo, merino wool and a cooling yarn, and it stretches in every direction. There are no rigid panels across the forefoot, so when your foot spreads, the knit spreads with it. Underneath is a contoured footbed with built-in arch support and a real rubber outsole.

That stretch is the reason we tell wide-footed customers to go up one letter. In your usual letter the knit will still fit, but it has to work harder across the widest part of your foot and you may feel it pressing on the little toe after a few hours. One letter up gives the knit room, and because it hugs the rest of your foot, the shoe doesn’t feel long or sloppy.

Which letter should I order?

  1. Find your usual US size on the COOPS size chart.
  2. Note the letter it maps to. A men’s US 10, for example, is an M.
  3. Order the next letter up. In that example, an L.

If you’re between two letters and your feet are wide, go up from the larger letter. If you’re unsure, measure your feet in the evening, when they tend to be largest. Our sizing guide walks through how.

Flat lay of COOPS in Black, Ash Gray and SandPerson at a kitchen counter in Ash Gray COOPS Low Tops
No laces to loosen. If the opening feels tight going on, that’s a sign to go up a letter.

High Top or Low Top for wide feet?

Both use the same sole and the same knit, so the width across your forefoot is identical. The difference is the height. The Low Top sits below the ankle, so it’s the easier of the two to slip on. The High Top hugs the ankle, which some people like for a closer, cozier feel. If getting shoes on is ever a struggle, start with the Low Top.

How should they feel after a week?

Snug, not tight. The knit relaxes a little over the first few wears and then holds its shape. You should be able to spread your toes inside the shoe. If you still feel pressure on the sides after a week of normal wear, exchange for the next letter up.

What if they don’t work?

Wear them around the house on a clean floor for a few days before you take them outside. If the fit is wrong, you can return or exchange within 30 days of delivery, and in the US the return label is free. Pairs worn outdoors can’t be returned, which is why we suggest the indoor test first. Everything is on our shipping and returns page.

Choose Your COOPS.

Pick your style, size, and color. Then add them straight to your bag.

High Top More coverage around the ankle for a closer, cozier feel.
$65
Quick add
Bundle & save Find your size

Free shipping on $85 or moreMachine washable

Low Top Easy on. Easy off. The everyday choice for breathable, flexible comfort.
$65
Quick add
Bundle & save Find your size

Free shipping on $85 or moreMachine washable

What’s in the box

A pair of black COOPS sock shoes with the COOPS box, black wash bag and two-sided information card
1× COOPS box Made from recycled materials
1× COOPS wash bag For the washing machine
1× Information card Care and information
1× Pair of COOPS Your style, color and size

Find your size

COOPS come in letter sizes, and each letter covers two US sizes, so half sizes are already handled. Find your usual US number below and order that letter.

COOPS sizeWomen’s USMen’s USEUFoot (cm)Foot (in)
5XS5–5.5—35–35.521.6–22.08.5–8.7
4XS6–6.54.5–536–3722.4–22.98.8–9.0
3XS7–7.55.5–637.5–3823.3–23.79.2–9.3
2XS8–8.56.5–738.5–3924.1–24.69.5–9.7
XS9–9.57.5–839.5–4025.0–25.49.8–10.0
S10–10.58.5–940.5–4125.8–26.210.2–10.3
M11–11.59.5–1041.5–4226.7–27.110.5–10.7
L1210.5–1142.5–4327.5–27.910.8–11.0
XL—11.5–1244–44.528.4–28.811.2–11.3
2XL—12.5–1345–4629.2–29.611.5–11.7
3XL—13.5–1446.5–4730.0–30.511.8–12.0
4XL—14.5–1547.5–4830.9–31.312.2–12.3
5XL—15.5–1648.5–4931.8–32.212.5–12.7

Foot length is the measurement that matters, if it falls between two letters, take the larger. A dash means that letter isn’t offered in that fit; wide feet, take the next letter up.

Questions people ask

Do COOPS fit wide feet?
Yes. Order one letter up from your usual size. The knit upper has no stiff panels, so it widens across the forefoot, and the larger letter keeps it from pressing.
Should I size up in COOPS if I have wide feet?
Yes, one letter. If you’re already between two letters, go up from the larger one.
Are the High Top and Low Top the same width?
Yes. They share the same sole and knit, so the width is identical. The Low Top sits below the ankle and is the easier one to slip on.

Sources

  1. Buldt AK, Menz HB (2018). Incorrectly fitted footwear, foot pain and foot disorders: a systematic search and narrative review of the literature. Journal of Foot and Ankle Research 11:43. doi.org/10.1186/s13047-018-0284-z
  2. Menz HB, Morris ME (2005). Footwear characteristics and foot problems in older people. Gerontology 51(5):346–351. doi.org/10.1159/000086373
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