Birkenstock Classic Fit Details

Birkenstocks are available in Regular (R) or Narrow (N) widths. Regular is suitable for people with regular to wide feet, while Narrow is suitable for people with Narrow feet. We recommend opting for Regular if you are unsure.

This Birkenstock runs true to size. We recommend sticking with your usual size and refer to the Size Guide if you are unsure.

This Birkenstock provides support features including longitudinal, metatarsal and transverse arch support, a heel cup and mold, and raised toe bar for basic orthotic support.

Birkenstock Classic Size Guide

How to find your size

Footbed Length (CM)  Euro AUS/US Footbed Width REG (MM) Footbed Width NAR (MM)
22 34 3.5/3 87 83
22.5 35 4.5/4 89 85
23 36 5.5/5 91 87
24 37 6.5/6 93 89
24.5 38 7.5/7 95 91
25 39 8.5/8 97 93
26 40 9.5/9 99 95
26.5 41 10.5/10 101 97
27 42 11.5/11 102 99
28 43 12.5/12 103 101
28.5 44 13.5/13 107 103
Footbed Length (CM) Euro US Footbed Width REG (MM) Footbed Width NAR (MM)
24 37 4-4.5 93 89
24.5 38 5-5.5 95 91
25 39 6-6.5 97 93
26 40 7-7.5 99 95
26.5 41 8-8.5 101 97
27 42 9-9.5 102 99
28 43 10-10.5 103 101
28.5 44 11-11.5 107 103
29 45 12-12.5 109 105
29.5 46 13-13.5 113 107
30.5 47 14-14.5 115 109
31 48 15-15.5 117 111
31.5 49 16-16.5 119 113
32.5 50 17-17.5 121 115
Footbed Length (CM) Euro AUS/US Footbed Width REG (MM) Footbed Width NAR (MM)
15 24 6-6.5 67 63
16 25 7-7.5 69 65
16.5 26 8-8.5 71 67
17 27 9-9.5 73 69
18 28 10-10.5 75 71
18.5 29 11-11.5 77 73
19 30 12-12.5 79 75
20 31 13-13.5 81 77
20.5 32 1-1.5 83 79
21 33 2-2.5 85 81
22 34 3-3.5 87 83
US/AU Size UK Size EU Sizes
M4 | W6 M3 | W4 36-37
M5 | W7 M4 | W5 37-38
M6 | W8 M5 | W6 38-39
M7 | W9 M6 | W7 39-40
M8 | W10 M7 | W8 41-42
M9 | W11 M8 | W9 42-43
M10 | W12 M9 | W10 43-44
11 10 45-46
12 11 46-47
13 12 48-49
14 13 49-50
15 14 50-51
16 15 51-52
17 16 52-53

Most Birkenstock styles are available in 'regular' or 'narrow' width.

Narrow width is suitable for narrow to slender feet.

Regular width is suitable for normal to wide feet.

If you already own a pair of Birkenstocks or are trying them on in store - check out the little foot symbol on the footbed. If the foot is coloured in, it's a narrow (N). If it's just an outline of a foot, it's a regular (R).

4.9
Rated 4.9 out of 5 stars
Based on 42 reviews
Total 5 star reviews: 40 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
98%would recommend these products
QUALITYRated 4.0 on a scale of 1 to 5
SIZINGRated -0.1 on a scale of minus 2 to 2
COMFORTRated 4.3 on a scale of 1 to 5
42 reviews
  • AS
    Angela S.
    Flag of Australia
    Verified Reviewer
    Birkenstock Kay BF Supergrip Animal Clogs Red
    Reviewing
    Birkenstock Kay BF Supergrip Animal Clogs Red
    I do not recommend this product
    Age Range 35 - 44
    Size Purchased (EU) 39
    Size Purchased (US) 8
    Bought For Work
    Rated 2 out of 5 stars
    8 months ago
    Don't last!

    I bought these as my work shoes (nursing). Wearing 3 days a week and for 7 months a crack appeared on the top of both shoes.

    The paint wears off quickly making them look untidy.

    My colleague who has the same pair has done the exact same thing.

    For thr amount I paid, this is extremely disappointing.

    QUALITYRated 1.0 on a scale of 1 to 5
    SIZINGRated 0.0 on a scale of minus 2 to 2
    COMFORTRated 5.0 on a scale of 1 to 5
  • MB
    Michelle B.
    Flag of Australia
    Verified Buyer
    Birkenstock Kay BF Supergrip Animal Clogs Blue
    Reviewing
    Birkenstock Kay BF Supergrip Animal Clogs Blue
    I recommend this product
    Age Range 45 - 54
    Foot Ailments Plantar fasciitis
    Size Purchased (EU) 40
    Size Purchased (US) 9
    Bought For Work
    Rated 5 out of 5 stars
    1 year ago
    Love them!! ❤️

    Super cute & when worn in properly will be the best.

    QUALITYRated 5.0 on a scale of 1 to 5
    SIZINGRated 0.0 on a scale of minus 2 to 2
    COMFORTRated 5.0 on a scale of 1 to 5
  • EV
    Evelin V.
    Verified Buyer
    Birkenstock Kay BF Supergrip Blue
    Reviewing
    Birkenstock Kay BF Supergrip Blue
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Cute and adorable

    Love my new Birkenstock. Very comfortable, and they sure make a statement when they are being worn.

  • TS
    Tamar S.
    Verified Buyer
    Birkenstock Kay BF Supergrip Animal Clogs Blue
    Reviewing
    Birkenstock Kay BF Supergrip Animal Clogs Blue
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Super comfy and fun 😍

    I love the colours and characters on these clogs and I’ve teamed up the blue dog ones with the red cat ones to have a bit of fun at work

    They are so very comfortable

    Thank you 😊

  • KM
    Kathryn M.
    Flag of Australia
    Verified Buyer
    Birkenstock Kay BF Supergrip Animal Clogs Blue
    Reviewing
    Birkenstock Kay BF Supergrip Animal Clogs Blue
    I recommend this product
    Age Range 55 - 64
    Size Purchased (EU) 38
    Size Purchased (US) 8
    Bought For Work
    Rated 5 out of 5 stars
    4 minutes ago
    🙂

    😃

    QUALITYRated 5.0 on a scale of 1 to 5
    SIZINGRated 0.0 on a scale of minus 2 to 2
    COMFORTRated 4.0 on a scale of 1 to 5
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