whatsizetobuy

Does it run big or small?

Model-level shoe fit answers and cut/line clothing guides — converters that match by chart, not guesswork.

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Confidence badges · methodology

Family sizing guides

Decision matrices and modifier hubs — Samba, Nike, Jordan/Dunk/AF1, New Balance, running, boots, between-sizes, and more.

Popular shoe conversions

Nike → Adidas Nike → New Balance Nike → Converse Nike → Vans Nike → Hoka Nike → Salomon Jordan → Nike Adidas → Puma

All brand comparisons · Clothes compares

Clothes brands

Cut/line fit under /clothes/ — separate from shoes.

& Other Stories AGOLDE ASOS Abercrombie Alo American Eagle

Shoe brands

Browse every model guide we publish.

Adidas

Campus 00s (true to size)
Forum Low (true to size)
Gazelle (runs big)
Gazelle Indoor (runs big)
Handball Spezial (true to size)
Samba OG (runs narrow)
Stan Smith (true to size)
Superstar (runs big)
Ultraboost 1.0 (true to size)

Altra

Lone Peak 8 (runs wide)

Asics

Gel-1130 (true to size)
Gel-Kayano 31 (true to size)

Birkenstock

Arizona (true to size)
Boston (true to size)

Blundstone

Classic 500 (true to size)
Original 510 (true to size)

Brooks

Ghost 16 (true to size)
Glycerin 21 (true to size)

Clarks

Desert Boot (true to size)
Wallabee (runs big)

Coach

Ashton Clog (runs small)

Converse

Chuck 70 High (runs big)
Chuck Taylor All Star High (runs big)

Crocs

Classic Clog (runs wide)
Echo Clog (true to size)

Doc Martens

1460 8-Eye Boot (runs big)
1461 3-Eye Shoe (runs big)
2976 Chelsea Boot (runs big)
Jadon Boot (runs big)

Hoka

Bondi 8 (true to size)
Clifton 9 (true to size)
Speedgoat 5 (true to size)

Jordan

Air Jordan 1 High (true to size)
Air Jordan 4 Retro (true to size)

Keen

Newport H2 (runs small)

Merrell

Jungle Moc (true to size)
Moab 3 (true to size)

New Balance

1906R (true to size)
2002R (true to size)
327 (runs narrow)
550 (runs narrow)
574 (true to size)
9060 (true to size)
990v6 (runs big)

Nike

Air Force 1 '07 (runs big)
Air Max 1 (true to size)
Air Max 90 (true to size)
Blazer Mid '77 (runs narrow)
Cortez (runs small)
Dunk Low (true to size)
Pegasus 41 (true to size)
Vomero 5 (true to size)

On

Cloud 5 (runs small)
Cloudmonster (true to size)
Cloudsurfer (true to size)

Puma

Palermo (runs narrow)
Suede Classic (true to size)

Red Wing

Classic Moc 1907 (runs big)
Iron Ranger 8085 (runs big)

Reebok

Club C 85 (true to size)

Salomon

Speedcross 6 (runs small)
XT-6 (runs small)

Skechers

D'Lites (runs small)
Go Walk 6 (true to size)

Solovair

Classic 8-Eye Derby Boot (true to size)

Sorel

Caribou (runs big)

TOMS

Alpargata (true to size)

Thursday Boot Co.

Captain (runs big)

Timberland

6-Inch Premium Boot (runs big)
Classic Boat Shoe (true to size)

UGG

Classic Mini (true to size)
Classic Short II (true to size)
Classic Ultra Mini (true to size)
Tasman Slipper (true to size)

Vans

Authentic (true to size)
Classic Slip-On (true to size)
Old Skool (true to size)
Sk8-Hi (true to size)

Veja

V-10 (runs big)

Yeezy

Boost 350 V2 (runs small)
Slides (runs small)