Super Birki Replacement Footbed Black

$30.00

$9.00

70% OFF

Color: Black

Size: 4-4.5

Size Guide · Birkenstock

Size Guide

Birkenstock footwear is listed in European sizes and built around a contoured footbed. Use the conversion charts and width guide below to find your best fit. Your toes should never touch the edge of the footbed—aim for about ¼ inch (6mm) of space around your foot.

Women’s Sizing

Quick formula: U.S. women’s size + 31 = EU size. If between sizes, choose the next size up.

EU Size	US Size	UK Size	Footbed Length (mm)
35	4 – 4.5	2.5	225
36	5 – 5.5	3.5	230
37	6 – 6.5	4 – 4.5	240
38	7 – 7.5	5	245
39	8 – 8.5	5.5 – 6	250
40	9 – 9.5	7	260
41	10 – 10.5	7.5	265
42	11 – 11.5	8	270
43	12 – 12.5	9	280

Men’s Sizing

Quick formula: U.S. men’s size + 33 = EU size. If between sizes, choose the next size up.

EU Size	US Size	UK Size	Footbed Length (mm)
39	6 – 6.5	5.5 – 6	250
40	7 – 7.5	7	260
41	8 – 8.5	7.5	265
42	9 – 9.5	8	270
43	10 – 10.5	9	280
44	11 – 11.5	9.5 – 10	285
45	12 – 12.5	10.5 – 11	290
46	13 – 13.5	11.5	300
47	14 – 14.5	12	305
48	15 – 15.5	13	310
49	16 – 16.5	14	320
50	17 – 17.5	14.5	325

Kids’ Sizing

Children’s feet grow quickly—measure regularly and allow room for movement.

EU Size	US Size	UK Size	Footbed Length (mm)
24	6 – 6.5	7	150
25	7 – 7.5	8	160
26	8 – 8.5	8.5	165
27	9 – 9.5	9	170
28	10 – 10.5	10	180
29	11 – 11.5	11	185
30	12 – 12.5	11.5	190
31	13 – 13.5	13	200
32	1 – 1.5	13.5	205
33	2 – 2.5	1	210
34	3 – 3.5	2	220

Width Guide

Regular / Wide

For medium to wide feet. On the footbed, look for an outlined footprint symbol. Women’s equivalent: C–D. Men’s equivalent: D–EE.

Outlined Footprint

Narrow

For narrow to medium feet. Fits most women’s feet. On the footbed, look for a solid/filled footprint symbol. Women’s equivalent: A–B. Men’s equivalent: B–C.

Filled Footprint

How to Measure & Test the Fit

Measure Foot Length

Stand with your heel against a wall. Measure from the wall to the tip of your longest toe in millimeters. Add 10mm for room to move.

Match to Chart

Use the footbed length column to find your EU size. If between sizes, choose the next size up—feet expand slightly under body weight.

Check Width Symbol

Look at the footprint printed on the footbed. Outlined = Regular/Wide. Filled = Narrow. Choose the width that matches your foot shape.

Flex Before Wearing

Before trying them on, flex the footbed by placing one hand under the toe and one under the heel. This begins the break-in process.

Breaking In Your Birkenstocks

Start Loose

Keep straps loose at first to avoid pressure points. Your feet need time to adjust to the contoured footbed.

Wear Gradually

Wear them around the house for 1–2 hours at a time. Gradually increase wear time as your feet adapt.

Tighten as They Mold

As the footbed begins to mold to your feet, you can tighten the straps for a more secure fit.

Check Toe Space

Your toes should never touch the edge of the footbed. Aim for about ¼ inch (6mm) of space around your foot.

Fit Note: Birkenstock shoes may feel roomy at first—this is intentional. The footbed is designed to let your toes spread naturally, and the upper will mold to your foot over time.

If your straps feel too loose even when tightened, a cobbler can punch extra holes. If there is significant room on either side of your foot in the footbed, you are most likely a Narrow width.

All measurements are approximate and based on European sizing. Footbed lengths include a small allowance for foot movement.

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