Start with Birkenstock's own size chart, not an automatic size down. Its U.S. guidance is to choose the larger size when you fall between sizes. Then check the width and how your foot sits inside the footbed. A Boston should leave room for your toes without feeling as though you have to grip to keep it on.
The Taupe Boston Soft Footbed is the first pair to compare here. Want a lined version for cooler mornings? Look at Boston Shearling as a separate fit choice.
Shop this guide: Birkenstock Unisex Boston Clog · Birkenstock Unisex Boston Shearling Clog · Birkenstock Unisex Arizona Birko-Flor Sandal
Birkenstock Unisex Boston Clog
$169.95
This Taupe suede Boston has a Soft Footbed with an extra foam layer. Start with your chart size. If the listing does not state a width, ask us to confirm it before ordering.
Choose your size
Birkenstock Unisex Boston Shearling Clog
$179.95
The shearling-lined version keeps the buckle and open-heel clog shape. Try it with your intended socks; lining changes the interior feel.
Choose your size
Birkenstock Unisex Arizona Birko-Flor Sandal
$117.95
If you would rather see and adjust more of the forefoot, compare the two-strap Arizona. This Black Birko-Flor version has the Original footbed, so it is not an identical Boston fit.
Choose your size| U.S. range | Women's EU | Men's EU |
|---|---|---|
| 7-7.5 | 38 | 40 |
| 8-8.5 | 39 | 41 |
| 9-9.5 | 40 | 42 |
| 10-10.5 | 41 | 43 |
| 11-11.5 | 42 | 44 |
A U.S. half size can already be inside one EU range: women's 7.5, for example, is in EU 38. The advice to size up applies when you fall between the chart's sizes, not to every half-size wearer. Check the full Birkenstock fit and size guide for other ranges.
The EU number on a Dansko or Pikolinos box is not a reason to skip this check. Each brand publishes its own conversions.
Birkenstock calls its widths Regular/Wide and Medium/Narrow. Regular is for medium-to-wide feet; Narrow is for narrow-to-medium feet. The footprint mark helps identify them: an outline means Regular, while a filled footprint means Narrow. Match the width to your foot, not just the men's or women's category on a shopping page.
Regular width describes the space across the shoe. Original footbed describes the construction underfoot. They do not mean the same thing. The Taupe Boston linked above is a Soft Footbed model, which adds cushioning foam; a different color or listing can be a different version.
When you stand, your foot should sit within the footbed rather than on the raised edge. If the length feels right but the sides press against your foot, compare widths before changing the EU size. Adjust the buckle comfortably over the instep. For the construction difference, read Soft Footbed versus Original.
Wear your intended socks for an indoor try-on. Walk, turn and pause with your weight on both feet. Look for comfortable toe room and an instep that holds without pinching. The sole and upper can settle with wear, but the size needs to work at the start.
For Boston Shearling, repeat that check with the lining in place. There is no blanket instruction to add or subtract a size for every lined foot.
Check another Boston color with the same width and footbed first. If you want a warm, lined clog, compare Boston Shearling. If you want a sandal for a different season, the Arizona is a useful next step. Our Boston versus Arizona guide shows how those choices differ.
Not automatically. Start with Birkenstock's chart. Its U.S. fitting guide recommends sizing up when you are between sizes, then checking width and fit.
No. Regular refers to width; Original refers to footbed construction. A Regular-width shoe can have a Soft Footbed.
The linked Taupe Boston uses the Soft Footbed. Confirm the exact footbed and width when comparing other Boston listings.
There is no universal size-up rule. Try the lined model with your intended socks and check comfortable toe space, width and instep hold.
Birkenstock labels them Regular/Wide and Medium/Narrow. An outlined footprint means Regular; a filled footprint means Narrow. Ask for confirmation if a product listing does not identify its width.
No. Birkenstock's chart groups U.S. whole and half sizes into one EU range. Women's 7-7.5, for example, maps to EU 38. Use the chart first, then check width and fit.
Product and fit references: Birkenstock U.S. fitting guide · Birkenstock Soft Footbed construction
These featured pairs qualify for free standard U.S. shipping. Full-price items have a 30-day return window after delivery with free return shipping. Items must be unworn, in original packaging with tags attached. Sale items are final sale. See our return policy and shipping policy.
Open a pair below to choose from its current colors and sizes. Prices and availability can change; the product page shows the current selection.
Birkenstock Unisex Boston Clog · Birkenstock Unisex Boston Shearling Clog · Birkenstock Unisex Arizona Birko-Flor Sandal
Prefer to try shoes in person? Visit Feet World in Culver City or Arcadia, or call (310) 398-7497 for fit help.
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