Do you wear socks with barefoot shoes?

Yes. The barefoot-shoe idea is about the shape of the shoe — flat, wide, flexible — not about literal bare skin, and almost everyone wears socks with them most of the time. There is no principle being violated.

The reason this question is worth a page is not the yes. It is that the sock is part of the fit, and in this category more than any other it can quietly undo the thing you bought the shoe for.

In a conventional cushioned trainer there is enough slack in the upper and enough material underfoot that a change of sock is a detail. In a barefoot shoe, you are often working with 4 to 8 mm of sole, a thin unstructured upper, and a fit you have deliberately chosen to be close in length.

In that context a thick wool sock is not a detail. It adds a couple of millimeters around the whole foot, which reduces the toe splay the wide last was providing, raises your foot in the shoe so the upper presses across the instep, and effectively shortens the shoe. People describe this as the shoe shrank or this brand's sizing is inconsistent, and quite often what changed was the sock.

The practical consequence is simple and it is the most useful thing on this page: measure and fit in the socks you intend to wear with that shoe. If you plan on thick socks in winter and thin ones in summer, that is an argument for a shoe with a removable insole — pull the insole in winter to buy back the volume the sock took. The sizing guide and the cross-brand table both assume this.

Thin, for most wear. The logic that makes you want a thin sole makes you want a thin sock: ground feel is reduced by anything between your foot and the shoe. Thin merino or a thin synthetic blend is the usual answer, and it manages moisture better than cotton, which holds sweat against the skin and is the usual culprit in a blister.

Toe socks, if splay is the point. Individual toe pockets keep the toes separated, which is the thing the wide toe box is for and which a conventional sock mildly counteracts by binding the toes together. They are also the standard answer for anyone running in Vibram FiveFingers, where the toe pockets in the shoe make a conventional sock impractical. They take some getting used to and the seams between toes bother some people.

Thick, only deliberately. Winter boots, cold work, hiking where you want some blister insurance. Fit the shoe for it rather than discovering it in November.

Compression socks are a different product with a different purpose, and if you have been told to wear them, that instruction outranks any of this. You will need a shoe with volume to spare.

Warm weather, washable shoes, short wear. A knit barefoot shoe you can put through a machine is a reasonable sockless proposition for a few hours in summer, and plenty of people wear theirs that way. Both the Saguaro Chaser and the Primus Lite III have knit uppers that tolerate washing.

Sandals, obviously. The whole barefoot sandal category is a sockless product and that is the point of it. The sandal roundup covers that end.

Water shoes, where a sock would just hold water. The water-shoe roundup.

Any leather shoe you want to keep. Sweat degrades leather lining from the inside and the shoe will smell permanently well before it wears out. This applies to every leather boot and dress shoe on this site.

Long days, hiking, or anything with mileage. Skin against an upper for hours with no intermediate layer is how blisters form, and a thin sole means your skin is also meeting more friction from the ground.

Cold weather. A 4 mm sole has essentially no insulating value, and your feet will find that out quickly. The winter boot roundup assumes socks, often two pairs.

While transitioning. Your feet are already managing a new load; adding friction management to the list is unnecessary. Wear socks for the transition and experiment later.

The Xero Shoes Prio is the practical answer for anyone who wants one shoe for both habits: a removable 2 mm insole means you can run thick socks in winter and thin in summer without the fit changing, which is the single most useful feature in this context. The Vivobarefoot Primus Lite III is the shoe where sock choice matters most, because at 4 mm total there is nothing to absorb a bad decision — thin socks, or none in warm weather. The Saguaro Chaser is the high-volume option, which makes it the most forgiving of a thick sock and the easiest to get wrong in the other direction with a thin one.

Two things matter more than which shoe on this page you pick, and both are free.

Get the size right. Barefoot brands size from internal length rather than from a conventional size label, and you need roughly 10 to 15 mm beyond your longest toe — more than a normal fitting leaves. Measure your feet, then use the sizing guide and the cross-brand table. Sizing up to get a wider shoe does not work: lasts scale in length, so you get heel slip and toes sitting behind the widest part of the shoe.

Build up slowly. The documented risk in this category is bone stress injury from a rushed transition — in one MRI study of 36 runners, 10 of the 19 who spent 10 weeks moving into minimal shoes developed new bone-marrow edema, mostly without symptoms. Keep your current shoes, add minimal-shoe hours gradually, and judge by how your feet feel the next morning. The transition plan.

Sock-specific: when you measure, put the sock on first. The 10 to 15 mm of length you are aiming for beyond your longest toe is a measurement of the foot as it will be inside the shoe, and a sock is part of that foot for fitting purposes.