What if I am between sizes in the Converse Chuck 70 High?

If you are between sizes in the Converse Chuck 70 High, lean toward the smaller size (Size down half a size). Do not size up purely for thick socks if the last already runs long.

Should I size up in the Converse Chuck 70 High for thick socks or break-in?

Break-in: Minimal. Thick socks add volume — try the sock you will wear with the usual size advice before jumping a full size. See the thick socks & boot break-in guides.

How do women’s sizes work for the Converse Chuck 70 High?

Open Women’s sizing for this model at /womens/converse/chuck-70-high/ for the brand’s men’s↔women’s gap plus this model’s fit offset. Do not assume every brand uses a 1.5 gap.

Converse

Chuck 70 High

Does the Chuck 70 High run big or small?

Chuck 70 shares Converseâ€™s official â€œruns large / half size downâ€ guidance with All Star. The premium build feels more structured a…

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Runs Big Size down half a size

VerifiedLast reviewed 2026-08-12

Runs smallTrue to sizeRuns big

Length often runs long vs street size (offset -0.5 US).

Width note: More structured than All Star; tapered toebox

What size should you buy?

Your usual size

Interactive suggestion based on this model’s fit offset (-0.5 US). Always confirm with a retailer return policy.

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Measured / size chart (cm)

Numbers only when sourced. Empty fields stay blank — we do not invent mm.

Internal length: 28.0 cm (280.1 mm)
Forefoot width: 100.1 mm
Toebox width: 66.5 mm
Reference size: US_M9

Lab measurement · Source: RunRepeat lab · Updated: 2026-08-13

Lab cut at US men's 9. Long internal length — many size down vs athletic shoes.

Know your foot length? Open the cm → size converter.

Converse size chart (foot-length cm)
US M	UK	EU	cm
6	5.5	38.5	23.8
6.5	6	39	24.2
7	6.5	40	24.8
7.5	7	40.5	25.2
8	7.5	41	25.6
8.5	8	42	26.1
9	8.5	42.5	26.4
9.5	9	43	26.9
10	9.5	44	27.4
10.5	10	44.5	27.8
11	10.5	45	28.1
11.5	11	45.5	28.6
12	11.5	46	29.1
13	12.5	47.5	29.9

Chart cm is approximate foot length for label matching — not a lab internal cut. Use the cm converter to map foot length across brands.

Fit scenarios

Between sizes: Start with the advice above, then confirm with the between-sizes / half-size guide.

Width: More structured than All Star; tapered toebox
Break-in: Minimal

Summary

Chuck 70 shares Converseâ€™s official â€œruns large / half size downâ€ guidance with All Star. The premium build feels more structured and the toebox can read tapered, so wide feet should be careful about going too small.

Sources: Converse Chuck 70 / All Star runs-large guidance (half down) · Structured last vs classic Chuck — toebox can read tapered · Owner half-down pattern (wide feet careful about going too small) · methodology

Women’s sizing

Converse uses a 2-size women’s→men’s US gap (not always 1.5). Convert your women’s US size with this model’s fit offset built in.

Women’s size in Chuck 70 High · All brands

Fit depth guide

Chuck 70 High sits on a more substantial last than classic Chuck Taylor for many wearers: thicker sole, roomier feel, and a slightly different length perception. Still, compared with modern Nike lifestyle shoes, many people find 70s a touch long and consider half a size down â€” especially for a cleaner look.

The canvas and foxing need a short break-in; the collar is kinder than old school Chucks for some feet but still benefits from socks during the first days. Orthotics and thicker insoles eat volume fast.

Versus All Star: if you already sized All Stars half down successfully, start there for 70s and only adjust if the roomier 70 last feels short. If All Stars felt cramped in width, 70s may let you stay closer to TTS.

Sizing tips: try TTS and half down when returns are free. Wide feet should be cautious about aggressive downsizing. Check unisex size charts carefully across regions.

What size did you take?

Anonymous fit check for Converse Chuck 70 High. Helps future readers — we never invent crowd stats.

Community results stay private until 25 responses for this page — no fake percentages.

Prefer email? Fit feedback.

FAQ

Does the Converse Chuck 70 High run big or small?: Runs Big. Size down half a size Chuck 70 shares Converseâ€™s official â€œruns large / half size downâ€ guidance with All Star. The premium build feels more structured and the toebox can read tapered, so wide feet should be careful about going too small.
What size should I buy in the Converse Chuck 70 High?: Size down half a size
What if I am between sizes in the Converse Chuck 70 High?: If you are between sizes in the Converse Chuck 70 High, lean toward the smaller size (Size down half a size). Do not size up purely for thick socks if the last already runs long.
Should I size up in the Converse Chuck 70 High for thick socks or break-in?: Break-in: Minimal. Thick socks add volume — try the sock you will wear with the usual size advice before jumping a full size. See the thick socks & boot break-in guides.
How do women’s sizes work for the Converse Chuck 70 High?: Open Women’s sizing for this model at /womens/converse/chuck-70-high/ for the brand’s men’s↔women’s gap plus this model’s fit offset. Do not assume every brand uses a 1.5 gap.

Generic US / UK / EU / cm reference

Secondary Mondopoint-style table. Prefer the brand chart in Measured / size chart (cm) when converting. Primary system: US_M.

US	UK	EU	cm
6	5.5	39	24.0
6.5	6	39.5	24.5
7	6.5	40	25.0
7.5	7	40.5	25.5
8	7.5	41	26.0
8.5	8	42	26.5
9	8.5	42.5	27.0
9.5	9	43	27.5
10	9.5	44	28.0
10.5	10	44.5	28.5
11	10.5	45	29.0
11.5	11	45.5	29.5
12	11.5	46	30.0
13	12.5	47.5	31.0

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