DO CONVERSE RUN TRUE TO SIZE? A UK FIT GUIDE

Most Converse run roughly half a size large. The Chuck Taylor All Star and CT70 share the same generous, narrow last, so UK buyers usually size down half a size from their normal trainer fit. Wider feet and chunkier soles like the Run Star shift that advice slightly, so read on before you commit.

The short answer for UK feet

The half-size rule holds across most of the range. Converse build the Chuck Taylor All Star and its Japanese-made CT70 sibling on a long, slim last, which is why a pair often feels bigger than the number on the box suggests. For a UK buyer, that usually means dropping half a size from your standard trainer fit. If you sit between sizes, the canvas upper softens and gives a little once worn, so the smaller option tends to win. The CT70 De Luxe Squared in True Sky Egret Black sits firmly in this camp — a clean low-top that wears long. Half-size-down is the rotation default here, and it holds across the classic low and high silhouettes. The one caveat is foot shape: narrow feet love this last, while broader feet sometimes prefer staying at their usual size for room across the toes rather than length. We cover width further down, but if you only remember one thing, remember that Converse measure long, and most people are happier going down.

Why Converse feel roomy — the last explained

A last is the foot-shaped mould a shoe is built around, and Converse have used a famously straight, narrow one for decades. The Chuck Taylor was designed in the 1910s as a basketball shoe, back when foot lengths were sized with more headroom than modern trainers allow. That heritage never really changed, so the canvas silhouette still carries extra length at the toe. Compared with a running trainer that hugs the foot, a Chuck sits long and flat. The flat vulcanised sole adds to the impression — there is no moulded footbed pushing your heel back, so your foot can drift forward in the shoe. This is why people who buy their usual number often find a thumb's width of empty space past their toes. It is not a defect; it is the shape. Once you understand the last, the half-size-down advice stops feeling like guesswork and starts feeling like maths. The canvas will mould to your foot within a week or two of wear, closing any small gaps across the midfoot, but it will not shorten — so length is the measurement to get right first.

CT70 and the De Luxe Squared

The CT70 is the reissue of the 1970s Chuck Taylor, and it is the pair most UK buyers are actually asking about when they search this question. It runs the same long, narrow last as the standard All Star, so the half-size-down rule applies directly. The difference is in the build quality — a thicker canvas, a more cushioned cotton-drill lining, and a higher rubber foxing that gives the toe more structure. The CT70 De Luxe Squared takes that base and squares off the toe box, which adds a fraction more room up front. In practice the fit still lands long, so we would not change the half-size-down call for it. The True Sky Egret Black colourway pairs a soft off-white upper with a sky-blue heel patch and black foxing, a quieter take on the usual cream-and-gum CT70. If you already own standard Chucks and know your number in them, buy the same in the CT70 — the lasts match. If you are coming from running trainers, take the half-size drop and you will land in the right place.

When to size differently — platforms and slip-ons

The half-size rule bends once you move away from the flat classic sole. The Run Star Ruby Red sits on a chunky exaggerated platform with a moulded base, and that sculpted footbed holds the heel in place far better than a flat vulcanised sole does. The result is a fit that sits closer to true to size — many people who size down half on a Chuck go back to their normal number on a Run Star. If you are between sizes, the platform models reward staying at your standard fit rather than dropping. Slip-on builds behave differently again, since there are no laces to cinch the foot down. The One Star Slip Pro in GOLF le FLEUR Forest Elf relies on a fixed collar and elastic gusset to hold the foot, so a snug fit matters more here than on a laced pair. For slip-ons we lean toward your true size or even a touch snug, because a roomy slip-on will heel-slip with every step. Match the sizing call to the silhouette, not just the brand.

Measure your foot, don't guess

Sizing charts mean little until you know your actual foot length in centimetres. Stand on a sheet of paper at the end of the day, when feet are at their largest, heel against a wall. Mark the longest toe, measure heel to mark, and do both feet — most people have one slightly longer, and you size to the bigger one. Converse publish a length-to-size chart, and matching your measured length to it removes most of the second-guessing. As a rough UK guide, a 26cm foot lands around a UK 8 in the brand's chart, but check the figure for your exact length rather than working from your trainer number. Once you have your measured size, apply the silhouette logic above: drop half for a flat Chuck or CT70, hold steady for a Run Star platform, and stay true or snug for a slip-on. If you order two sizes to compare at home, keep the one where your toes reach near the end with a small gap, not the one swimming in space. Measuring takes two minutes and saves a return.

Socks, width and breaking them in

Width is where Converse trip people up. The narrow last suits slim and standard feet, but broader feet can feel pinched across the ball even when the length is right. If that is you, staying at your normal number rather than dropping half gives the toes more room, and the canvas stretches sideways with wear. Sock choice matters too — a thick ribbed sock can eat half a size of room, so size with the socks you actually wear. New canvas Converse feel stiff for the first few wears, particularly around the toe foxing and the heel collar on high-tops. That stiffness eases within a week or two as the cotton softens and moulds to your foot. Do not size up to dodge the break-in; a pair bought too long will never tighten, while a snug canvas pair settles into the right fit. If a heel rubs early on, a thin sock and a couple of short wears usually sort it before any real soreness sets in. Get the length right first, factor in your width and socks, and let the canvas do the rest.

Common Questions

Should I size up or down in Converse?

For the flat classic silhouettes — Chuck Taylor All Star and CT70 — size down half a size from your usual trainer fit, as the narrow last runs long. Broader feet may prefer staying at their normal number for width.

Do CT70s fit the same as regular Chuck Taylors?

Yes. The CT70 uses the same long, narrow last as the standard All Star, so the half-size-down rule applies to both. If you know your number in regular Chucks, buy the same in the CT70.

Do Converse Run Star platforms run true to size?

Closer to true to size than the flat models. The moulded platform footbed holds the heel better, so many people go back to their standard number on a Run Star rather than dropping half a size.

How should Converse fit when new?

Snug across the midfoot with a small gap past your longest toe. Canvas softens and moulds within a week or two, so a pair that feels slightly firm at first usually settles into the right fit.

If you have measured your foot and you know your silhouette, you are ready to pick a pair. The CT70 De Luxe Squared is the safe half-size-down classic, the Run Star Ruby Red rewards your standard number, and the One Star Slip Pro wants a snug fit. Browse the full Converse collection to find your size and bring the right pair into your rotation.