Barefoot shoe sizing

Allways Barefoot Size Charts

Measure once, choose your US size view, then compare every active brand chart in one place. Product pages still have model-specific guides, but this page is the quick reference shelf.

How to measure your feet

1. Set the paperPut paper on a hard floor with one edge tight against a wall.

2. Stand naturallyHeel against the wall, full weight on the foot, toes relaxed.

3. Mark and measureMark the longest toe, measure in cm, and use the longer foot.

Foot measurement tool

Enter your foot length and choose men or women to get a starting size. Matching rows will light up inside each brand chart below.

Allways Barefoot

Cruiser Barefoot Shoes Men

Wide width barefoot shoes, allow thumb-width space for toes

US Size	Inches	EU Size	UK Size	CM
7	10"	40	6	25.3
8	10¼"	41	7	25.9
9	10½"	42	8	26.6
10	10¾"	43	9	27.3
11	11"	44	10	28.0
12	11¼"	45	11	28.7
13	11½"	46	12	29.4
14	11¾"	47	13	30.1
15	12¼"	48	14	30.8

Belleville

Belleville Mini-Mil Men

Cross-checked against Belleville Mini-Mil product sizing on bellevilleboot.com and the Belleville men conversion chart. Catalog EU sizes follow the live product variants.

US Size	Inches	EU Size	UK Size	CM
7	9.84 in	39	6	25
8	10.24 in	40.5	7	26
9	10.63 in	42	8	27
10	11.02 in	43	9	28
11	11.42 in	44	10	29
12	11.81 in	45.5	11	30
13	12.20 in	46.5	12	31
14	12.60 in	47.5	13	32

Earth Runners

Earth Runners Adult Unisex

Source: official Earth Runners sandal sizing page. Earth Runners recommends a close fit with minimal extra room.

US Size	Inches	EU Size	UK Size	CM
4M / 6W	9-3/16 in	36	3	23.4
4.5M / 6.5W	9-3/8 in	36	3.5	23.8
5M / 7W	9-9/16 in	37	4	24.2
5.5M / 7.5W	9-11/16 in	37.5	4.5	24.5
6M / 8W	9-13/16 in	38	5	24.9
6.5M / 8.5W	10 in	39	5.5	25.4
7M / 9W	10-1/8 in	39	6	25.7
7.5M / 9.5W	10-1/4 in	40	6.5	26.1
8M / 10W	10-7/16 in	41	7	26.5
8.5M / 10.5W	10-9/16 in	41	7.5	26.9
9M / 11W	10-11/16 in	42	8	27.3
9.5M / 11.5W	10-7/8 in	43	8.5	27.8
10M / 12W	11-1/16 in	43	9	28.2
10.5M / 12.5W	11-3/16 in	44	9.5	28.5
11M / 13W	11-3/8 in	44.5	10	28.9
11.5M / 13.5W	11-9/16 in	45	10.5	29.4
12M / 14W	11-3/4 in	46	11	29.8
12.5M / 14.5W	11-7/8 in	46	11.5	30.1
13M / 15W	12-1/16 in	47	12	30.4
13.5M / 15.5W	12-1/8 in	47.5	12.5	30.8
14M / 16W	12-1/4 in	48	13	31.2

Groundies

Groundies Adult Men

German barefoot brand. True to size, wide toe box for natural foot shape.

US Size	Inches	EU Size	UK Size	CM
7	9¾"	40	6.5	25.0
7.5	10"	40.5	7	25.5
8	10¼"	41	7.5	26.0
8.5	10½"	41.5	8	26.5
9	10¾"	42	8.5	27.0
9.5	10¾"	42.5	9	27.5
10	11"	43	9.5	28.0
10.5	11¼"	43.5	10	28.5
11	11½"	44	10.5	29.0
11.5	11½"	44.5	11	29.5
12	11¾"	45	11.5	30.0
12.5	12"	45.5	12	30.5
13	12¼"	46	12.5	31.0
14	12½"	47	13	32.0
15	13"	48	14	33.0

Groundies

Groundies Men GO1

Official Groundies men GO1 size chart. Measurements refer to the inside length of the shoe and are approximate.

US Size	Inches	EU Size	UK Size	CM
7.5	9.1	40	6.5	26.0
8.5	9.3	41	7.5	26.7
9	9.5	42	8	27.3
10	9.7	43	9	27.9
10.5	9.8	44	9.5	28.6
11.5	10.0	45	10.5	29.3
12	10.1	46	11	30.0
13	10.2	47	12	30.7
13.5	10.3	48	12.5	31.4

Groundz

Groundz Sneakers Men

Source: official Groundz sizing-and-fit page for sneakers. Groundz notes the sneaker last runs true to size there, while some AION product pages advise going up half a size if between sizes.

US Size	Inches	EU Size	UK Size	CM
7	9.4-9.8 in	40	-	23.8-24.8
8	9.8-10.1 in	41	-	24.8-25.7
9	10.1-10.4 in	42	-	25.7-26.5
10	10.4-10.7 in	43	-	26.5-27.1
10.5	10.7-10.9 in	43.5	-	27.1-27.6
11	10.9-11.2 in	44	-	27.6-28.4
12	11.2-11.5 in	45	-	28.4-29.1
12.5	11.5-11.7 in	46	-	29.1-29.6
13	11.7-11.9 in	47	-	29.6-30.1
14	11.9-12.2 in	48	-	30.1-31.1
15	12.2-12.7 in	49	-	31.1-32.3

Icarus

Icarus Ascent Gen 2 Men

Source: Icarus Ascent Gen 2 size chart image. Inches are converted from the provided recommended foot length in cm. UK sizes were not provided.

US Size	Inches	EU Size	UK Size	CM
4.5	8.78"	36	-	22.3
5	8.94"	36/37	-	22.7
5.5	9.09"	37	-	23.1
6	9.25"	37/38	-	23.5
6.5	9.41"	38	-	23.9
7	9.57"	38/39	-	24.3
7.5	9.72"	39	-	24.7
8	9.88"	39/40	-	25.1
8.5	10.04"	40	-	25.5
9	10.20"	41	-	25.9
9.5	10.35"	41/42	-	26.3
10	10.51"	42	-	26.7
10.5	10.67"	43	-	27.1
11	10.83"	43/44	-	27.5
11.5	10.98"	44	-	27.9
12	11.14"	45	-	28.3
12.5	11.30"	45/46	-	28.7
13	11.46"	46	-	29.1
13.5	11.61"	46/47	-	29.5
14	11.77"	47	-	29.9

Lems Shoes

Lems Shoes Men

Official Lems 2025 sizing chart. Insole length should be about 1-1.5 cm longer than foot length.

US Size	Inches	EU Size	UK Size	CM
4.5	9.06	36	3.5	23.0
5	9.21	37	4	23.4
5.5	9.37	37.5	4.5	23.8
6	9.53	38	5	24.2
6.5	9.69	38.5	5.5	24.6
7	9.88	39	6	25.1
7.5	10.04	40	6.5	25.5
8	10.20	40.5	7	25.9
8.5	10.35	41	7.5	26.3
9	10.55	42	8	26.8
9.5	10.71	42.5	8.5	27.2
10	10.87	43	9	27.6
10.5	11.02	44	9.5	28.0
11	11.22	44.5	10	28.5
11.5	11.38	45	10.5	28.9
12	11.54	46	11	29.3
12.5	11.69	46.5	11.5	29.7
13	11.89	47	12	30.2
14	12.20	48	13	31.0
15	12.52	49	14	31.8

Lono Shoes

US Size	Inches	EU Size	UK Size	CM
6.5	8 ⁷⁄₁₆ – 8 ⁵⁄₈ in	39	-	23.9 – 24.5
7.5	9 ⁷⁄₁₆ – 9 ⁵⁄₈ in	40	-	24.6 – 25.1
8.5	9 ¹¹⁄₁₆ – 9 ⁷⁄₈	41	-	25.2 – 25.7
9	9 ¹⁵⁄₁₆ – 10 ¹⁄₈	42	-	25.8 – 26.3
10	10 ³⁄₁₆ – 10 ³⁄₈	43	-	26.4 – 27.0
11	10 ³⁄₈ – 10 ⅝	44	-	27.1 – 27.7
12	10 ¹¹⁄₁₆ – 10 ⁷⁄₈	45	-	27.8 – 28.3
13	10 ¹⁵⁄₁₆ – 11 ⅛	46	-	28.4 – 29.0
13.5	11 ³⁄₁₆ – 11 ⁷⁄₁₆	47	-	29.1 – 29.6
14	11 ¹¹⁄₁₆ – 11 ⅞	48	-	29.7 – 30.2

Luna Sandals

Luna Sandals Adult Men

Official Luna adult foot-length chart converted to single midpoint values for site sizing calculations. Luna also offers mailed size templates for people without a printer.

US Size	Inches	EU Size	UK Size	CM
4	8.66	36	3	22.0
4.5	8.86	36.5	3.5	22.5
5	9.02	37	4	22.9
5.5	9.17	37.5	4.5	23.3
6	9.37	38	5	23.8
6.5	9.49	38.5	5.5	24.1
7	9.65	39	6	24.5
7.5	9.84	39.5	6.5	25.0
8	10.04	40	7	25.5
8.5	10.20	40.5	7.5	25.9
9	10.35	41	8	26.3
9.5	10.47	41.5	8.5	26.6
10	10.67	42	9	27.1
10.5	10.83	42.5	9.5	27.5
11	11.02	43	10	28.0
11.5	11.18	43.5	10.5	28.4
12	11.34	44	11	28.8
12.5	11.54	44.5	11.5	29.3
13	11.73	45	12	29.8

Magical Shoes

Magical Shoes Adult Men

European barefoot brand. True to size, allow thumb-width space for natural toe movement.

US Size	Inches	EU Size	UK Size	CM
7	9¾"	40	6.5	25.0
7.5	10"	40.5	7	25.5
8	10¼"	41	7.5	26.0
8.5	10½"	41.5	8	26.5
9	10¾"	42	8.5	27.0
9.5	10¾"	42.5	9	27.5
10	11"	43	9.5	28.0
10.5	11¼"	43.5	10	28.5
11	11½"	44	10.5	29.0
11.5	11½"	44.5	11	29.5
12	11¾"	45	11.5	30.0
12.5	12"	45.5	12	30.5
13	12¼"	46	12.5	31.0
14	12½"	47	13	32.0
15	13"	48	14	33.0

Notace

Notace Men

Source: official Notace size guide (men's chart image). Notace recommends sizing up by half a size if needed for fit preference.

US Size	Inches	EU Size	UK Size	CM
7	10.08 in	39	6	25.6
7.5	10.24 in	40	6.5	26.0
8	10.43 in	41	7	26.5
8.5	10.59 in	42	7.5	26.9
9	10.75 in	42.5	8	27.3
9.5	10.91 in	43	8.5	27.7
10	11.10 in	44	9	28.2
10.5	11.26 in	44.5	9.5	28.6
11	11.42 in	45	10	29.0
11.5	11.57 in	45.5	10.5	29.4
12	11.81 in	46.5	11	30.0
12.5	11.93 in	47	11.5	30.3
13	12.09 in	47.5	12	30.7

Splay

Splay Gen 3 Men

Source: official Splay conversion chart for Freestyle 3, REV HTS, REV LTS, and REV SOS.

US Size	Inches	EU Size	UK Size	CM
Y4.5	9.06 in	36	Y3.5	23.0
M5	9.21 in	37	Y4	23.4
M5.5	9.37 in	37.5	Y4.5	23.8
M6	9.53 in	38	M5	24.2
M6.5	9.69 in	39	M5.5	24.6
M7	9.88 in	39.5	M6	25.1
M7.5	10.04 in	40	M6.5	25.5
M8	10.20 in	41	M7	25.9
M8.5	10.35 in	41.5	M7.5	26.3
M9	10.55 in	42	M8	26.8
M9.5	10.71 in	43	M8.5	27.2
M10	10.87 in	43.5	M9	27.6
M10.5	11.02 in	44	M9.5	28.0
M11	11.22 in	44.5	M10	28.5
M11.5	11.38 in	45	M10.5	28.9
M12	11.54 in	46	M11	29.3
M13	11.85 in	47	M12	30.1
M14	12.20 in	48.5	M13	31.0

Splay

Splay Legacy Adult Unisex

Source: official Splay sizing conversion chart for Splay 101, Runner V1, Streetstyle Slip-On, Freestyle 2.0, REV HT Original, REV LT Original, Explore 2.0, and Dash.

US Size	Inches	EU Size	UK Size	CM
5Y / 7W	9.42 in	37	4Y	23.9
6M / 8W	9.75 in	38	5Y / 6W	24.8
7M / 9W	10.09 in	39	6.5M / 7W	25.6
8M / 10W	10.42 in	41	7.5M / 8W	26.5
9M / 11W	10.75 in	42	8.5M / 9W	27.3
10M / 12W	11.09 in	43	9.5M / 10W	28.2
11M / 13W	11.42 in	44	10.5M / 11W	29.0
12M / 14W	11.75 in	46	11.5M / 12W	29.9
13M / 15W	12.09 in	47	12.5M / 13W	30.7

Tomas Sullivent

Tomas Sullivent Men

Official Tom?s Sullivent 2024 men's size chart based on the brand PDF. Approximate estimates published by the brand.

US Size	Inches	EU Size	UK Size	CM
7	10.31	40	6	26.2
7.5	10.43	40-41	6.5	26.5
8	10.59	41	7	26.9
8.5	10.75	41-42	7.5	27.3
9	10.87	42	8	27.6
9.5	10.98	42-43	8.5	27.9
10	11.14	43	9	28.3
10.5	11.26	43-44	9.5	28.6
11	11.38	44	10	28.9
11.5	11.50	44-45	10.5	29.2
12	11.61	45	11	29.5
12.5	11.93	46	11.5	30.3
13	12.17	47	12	30.9
14	12.40	48	13	31.5
15	12.64	49	14	32.1

Vibram Five Fingers

Vibram FiveFingers Men

Choose size up to have the best fit. Foot length is the longest toe measurement in inches plus 1/8 inch.

US Size	Inches	EU Size	UK Size	CM
5.5-6	9	37	-	22.9
6.5-7	9 1/4	38	-	23.5
7.5-8	9 1/2	39	-	24.1
8-8.5	9 3/4	40	-	24.8
8.5-9	10	41	-	25.4
9-9.5	10 1/4	42	-	26.0
9.5-10	10 1/4	43	-	26.7
10.5-11	10 3/4	44	-	27.3
11-11.5	11	45	-	28.0
11.5-12	11 1/4	46	-	28.6
12-12.5	11 1/2	47	-	29.2
12.5-13	11 3/4	48	-	30.0
13-14	12	49	-	30.5
14-15	12 1/4	50	-	31.1

Vibram Five Fingers

Vibram FiveFingers Adult Unisex

Must fit like gloves - longest toe should just touch end of toe pocket. No wiggle room needed.

US Size	Inches	EU Size	UK Size	CM
4.5	8¾"	35	2.5	22.5
5.5	9¼"	36	3.5	23.2
6.5	9¼"	37	4.5	23.8
7.5	9¾"	38	5.5	24.5
8.5	10"	39	6.5	25.1
9.5	10¼"	40	7.5	25.8
10.5	10½"	41	8.5	26.4
11.5	10¾"	42	9.5	27.1
12.5	11"	43	10.5	27.7
13.5	11¼"	44	11.5	28.4
14.5	11½"	45	12.5	29.0
15.5	11¾"	46	13.5	29.7
16.5	12"	47	14.5	30.3
17.5	12¼"	48	15.5	31.0
18.5	12½"	49	16.5	31.6
19.5	12¾"	50	17.5	32.3

Vibram Furoshiki

Vibram Furoshiki Men

Cross-checked against the official Vibram Furoshiki sizing page and retailer conversion tables for the current Furoshiki line.

US Size	Inches	EU Size	UK Size	CM
8	9.45 in	40	7.5-8	24.0
8.5	9.72 in	41	8.5	24.7
9	9.96 in	42	9-9.5	25.3
9.5	10.24 in	43	10	26.0
10.5	10.51 in	44	10.5	26.7
11	10.75 in	45	11-11.5	27.3
11.5	11.02 in	46	12	28.0
12	11.30 in	47	12.5	28.7

Vivobarefoot

Vivobarefoot Adult Men

Fits wide, allow thumb-width space for toes. If between sizes, size up.

US Size	Inches	EU Size	UK Size	CM
7	10"	40	6	25.1
8	10¼"	41	7	25.9
9	10½"	42	8	26.6
10	10¾"	43	9	27.3
11	11"	44	10	27.9
12	11¼"	45	11	28.6
12.5	11½"	46	11.5	29.3
13	11¾"	47	12	30.0
14	12"	48	13	30.6
15	12¼"	49	14	31.3
16	12½"	50	15	32.0
17	12¾"	51	16	32.7

Xero Shoes

Xero Shoes Adult Men

Some models run small - check individual product notes. Allow 1/4-1/2 inch space.

US Size	Inches	EU Size	UK Size	CM
6.5	10"	39.5	5.5	25.4
7	10¼"	40	6	25.8
7.5	10¼"	40.5	6.5	26.2
8	10½"	41	7	26.7
8.5	10¾"	41.5	7.5	27.1
9	10¾"	42	8	27.5
9.5	11"	42.5	8.5	28.0
10	11¼"	43	9	28.4
10.5	11¼"	43.5	9.5	28.8
11	11½"	44	10	29.2
11.5	11¾"	44.5	10.5	29.7
12	11¾"	45	11	30.1
12.5	12"	45.5	11.5	30.5
13	12¼"	46	12	30.9
14	12½"	47	13	31.8
15	12¾"	48	14	32.7

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