Quick answer: For most people with diabetes, light to medium padding is enough: NIDDK suggests lightly padded socks that fit well. Look for a cushioned sole under the heel and ball that still leaves room in your shoes. Small studies found padded socks spread pressure, but none has shown that socks alone mean fewer foot sores.
What makes a diabetic sock padded?
Extra material under the foot, usually terry: small loops of yarn knit into the inside of the sole. A 2026 review of diabetic socks recommends terry under the sole for cushioning. Padded sole diabetic socks come in four main builds:
- Terry sole: loops across the whole sole, or just under the heel and ball.
- Dense zones: thicker terry at the heel and ball.
- Two layers: a padded outer layer over a low-friction inner layer, as in a 2005 study.
- Gel or foam: a gel lining or a pouch of foam beads, which adds bulk.
The American Diabetes Association (ADA) suggests socks that "have some padding if you need more cushion on the bottom of your feet," NIDDK says to choose "clean, lightly padded socks that fit well," and MedlinePlus says you may want "special socks with extra padding." For the other features, see how to choose diabetic socks.
Is terry cushioning the same as padding?
Usually, yes. Terry, also called pile, is the common way to pad a knitted sock: in a 2015 review, the diabetic socks examined used pile knits over the areas that needed extra padding. What varies is loop height, density and placement, and brands set their own cushion labels, so compare feel and fit, not names.
Terry has trade-offs. In lab tests of nine socks described in the 2026 diabetic sock review, terry knits held the most heat, let the least air and water vapor through and sprang back the least after being squashed. Terry also thins with wear: in an 18-week trial in people with diabetes, wool socks with terry under the heel and toes lost about 10% of their thickness, against 7% for the same sock with a flat knit.
How thick should cushioned socks be?
Thick enough to soften your step, thin enough that your shoes still fit. Sock thicknesses reported in research:
| Sock | Thickness | Source |
|---|---|---|
| Ordinary supermarket sock | 0.7 mm | Garrow 2005, via Venkatraman 2026 |
| Summer-weight socks | Under 1.3 mm | Venkatraman 2026 |
| Winter-weight socks | Over 2.25 mm | Venkatraman 2026 |
| Padded two-layer study sock | 2.7 mm at its thickest | Garrow 2005, via Venkatraman 2026 |
| Foam-bead indoor sock | Too bulky for most shoes; Venkatraman 2026 calls it an indoor foot covering | Soh 2020 |
The padded study sock was only about 2 mm thicker than the supermarket sock, yet it spread pressure over more of the sole. Thickness also softens impact: in a lab impact test, athletic socks cut the peak force of a dropped weight by 6% to 20% compared with no sock, with thickness a key factor. Shoes still absorb more than socks, a 2026 review of sock biomechanics notes.
Thick socks have a cost, though. In a study of 14 healthy older adults, thick socks dulled the sense of touch on the soles and increased sway while standing, which the authors warn may raise the chance of falls. If your feet are numb or your balance is shaky, ask your doctor or podiatrist how much padding suits you. Otherwise, match the cushion to the shoe:
- Thin or light: dress shoes, flats and snug pairs.
- Light to medium: sneakers, walking shoes and most everyday pairs.
- Thick cushioned socks: roomy boots and extra-depth shoes, if your toes still move freely.
What does research say about padded socks and pressure under the foot?
A handful of small studies, mostly in people with diabetic nerve damage, found that specially designed padded socks lowered pressure under the front of the foot, usually by about 10% to 30%. Not every study agreed, none was designed to test whether people got fewer foot sores, and none tested Mi Socks.
| Study | Who and what | What it found |
|---|---|---|
| Veves 1989 | 27 people with nerve damage: padded test socks, their own socks, barefoot | Own socks: no significant change. Padded socks: 26% lower peak forefoot pressure. |
| Veves 1990 | 10 people with nerve damage wore padded test socks for 6 months | 31% lower peak forefoot pressure at the start, 16% to 18% at 3 and 6 months. Padded sports socks: 10% to 17% lower than barefoot. |
| Murray 1993 | 86 people with nerve damage, most also given extra-depth shoes | 85% rated the socks good or very good. 7 new foot sores appeared in 6 months. No comparison group. |
| Blackwell 2002 | 21 people with diabetes: a diabetic sock, a dress sock or none | No significant difference in forefoot pressure |
| Garrow 2005 | 19 people with nerve damage: two-layer padded socks vs supermarket socks | 11 cm² more of the sole in contact, 9% lower total pressure, 10% lower peak forefoot pressure |
| Soh 2020 | 31 people with high-risk diabetic feet: foam-bead indoor socks vs barefoot | Peaks 22% to 49% lower over 12 weeks, in socks too bulky for most shoes |
Reviews are cautious. Otter 2015 found 7 usable studies out of 81 and called the support for padded socks "limited." The 2026 diabetic sock review rated the studies in people poor in quality, and the 2026 sock biomechanics review, covering 25 studies, found cushioned designs consistently lowered forefoot pressure but judged the risk of bias high.
What the studies do show is the mechanism: a padded sole puts more of your foot in contact with the shoe, so each step's load is shared by a bigger area. That makes cushioning a sensible comfort feature, not evidence that any sock, ours included, keeps feet free of sores.
Can thick socks make your shoes too tight?
Yes, and with diabetes that matters more than softness. Padding takes up room inside the shoe, and MedlinePlus warns that "you may not feel pressure from shoes that do not fit well." It also says never to buy tight shoes, even if you think they will stretch. Fit socks and shoes together:
- Bring your socks. Harvard Health suggests wearing the same type of socks to the store that you'll wear with the shoes.
- Shop late. NIDDK and the CDC suggest trying on shoes at the end of the day, when feet tend to be largest.
- Check the toe room. The ADA suggests about a thumbnail of space past your big toe. Stand up and wiggle your toes.
- Break them in slowly. NIDDK suggests wearing new shoes for a few hours at first, then checking your feet for sore areas. MedlinePlus notes that blisters and sores can develop where your foot presses against the shoe, so a red mark means the fit is too tight.
If a cushioned sock makes a favorite pair snug, wear a thinner sock with that pair. A bigger sock size won't make room, since the padding stays as thick and the extra length bunches; see how diabetic socks should fit. If a red mark doesn't fade or the skin breaks, call your doctor. Our guide to diabetic shoes and socks covers fitting the two together.
Do you need extra cushioning under the heel?
Cushioned heel socks are popular, and the heel carries a heavy load: in the 2020 foam-bead study, the heel had one of the two highest average pressure peaks, nearly level with the ball of the foot. Padding there can soften each heel strike.
With diabetes, though, pad the ball of the foot too. Most of the studies above measured the front of the foot, and Otter's review notes that up to three-quarters of diabetic foot sores form over the metatarsal heads, at the ball of the foot. Choose padding under both.
For a sore heel, look past the sock first. The NHS suggests wide, comfortable shoes with a low heel and soft sole, plus soft insoles or heel pads, and says anyone with diabetes should see a GP (a family doctor) about a sore heel.
Are padded socks a good idea if your feet are sore?
They can make hard floors feel softer, but no sock fixes the reason your feet are sore, and none of the studies above tested soreness. If you're shopping for cushioned socks for foot pain, start with the shoes: for sore soles, the NHS suggests roomy shoes with a low heel and soft sole, soft insoles or pads, and not walking or standing for long periods. See our orthopedic socks guide for a sore-feet checklist, or socks for standing all day for long shifts.
The NHS says to see a GP if sore feet aren't better after 2 weeks of home care, if you have tingling or loss of feeling, or if you have diabetes, and MedlinePlus says to contact your provider if your foot hurts and you have diabetes. Burning, tingling or numbness can come from nerve damage, which no sock can repair. See the best socks for neuropathy, or browse our neuropathy socks.
How much cushion do Mi Socks have?
We make Mi Socks, so weigh this section accordingly. They have a terry-cushioned sole, which we class as medium cushioning, plus a loose non-binding top and a smooth flat toe seam, in a breathable cotton-rich blend (80% cotton, 13% polyester, 5% rubber, 2% spandex). We haven't measured the sole's thickness or tested them in a pressure study, so we don't quote figures. Honest notes: cotton holds sweat (the ADA suggests synthetic fabric or wool for moisture), they are Imported and not compression socks, and because the blend contains rubber, ask your doctor first if you have a latex allergy.
Try one pair for $9.99 (plus $4.95 shipping) in the shoes you wear most. If they fit, the Mi Socks crew 6-pack ($6 a pair) is $35.99 and ships free in the US. Sizes are M, L and XL on our sock size chart, and White makes daily foot checks easier.
Frequently asked questions
Are padded socks good for people with diabetes?
Usually, if they fit. NIDDK suggests lightly padded socks that fit well. Pick padding under the heel and ball, a loose top and a flat toe seam, and keep checking your feet daily.
How thick are cushioned socks?
Only a few millimeters. A 2026 review of diabetic socks puts summer socks under 1.3 mm and winter socks over 2.25 mm, and a padded two-layer study sock was 2.7 mm at its thickest.
Do padded socks wear out?
Yes. In an 18-week wear trial, terry-padded socks lost about 10% of their thickness. Replace a pair when the sole feels flat or thin, or at the first hole, since MedlinePlus says holes can put damaging pressure on your toes.
Are cushioned heel socks good for plantar fasciitis?
They may feel softer, but no sock is a treatment for it. The NHS says a GP will usually suggest shoes with cushioned heels and good arch support, plus insoles or heel pads. With diabetes, see your doctor about any heel problem that lasts.
Do padded socks make your feet hot?
They can. In lab tests terry held the most heat and let the least air through, and in a wear trial terry socks ran warmest on the skin. In hot weather, pick a lighter cushion.
Can you wear padded socks around the house without shoes?
It's best not to. NIDDK says not to walk barefoot or in just socks, even indoors, and the CDC suggests shoes and socks or slippers inside.
Sources
- ADA: 8 Tips to Protect Your Feet with Diabetes. NIDDK: Diabetes & Foot Problems. CDC: Your Feet and Diabetes.
- MedlinePlus: Diabetes: taking care of your feet; Foot pain.
- NHS: Heel pain; Pain in the bottom of the foot; Plantar fasciitis.
- Harvard Health: 10 tips for finding the right shoes.
- Reviews: Venkatraman PD, et al. Diabetes Metab Res Rev, 2026. Otter SJ, et al. J Foot Ankle Res, 2015. Painceira-Villar R, et al. Bioengineering (Basel), 2026.
- Studies: Veves A, et al. Diabetes Care, 1989 and Diabet Med, 1990. Murray HJ, et al. Diabetes Care, 1993. Blackwell B, et al. Int J Low Extrem Wounds, 2002. Garrow AP, et al. Diabetes Care, 2005. Soh EZF, et al. J Tissue Viability, 2020. Blackmore T, et al. Clin Biomech, 2013. Ma CZ, et al. Prosthet Orthot Int, 2018.
Written by the Mi Socks team. Sources checked October 2026. Mi Socks are non-compression comfort socks, not a medical device or treatment. This guide is general information, not medical advice; see our medical information page.