Ozmosis carries the best products from the best brands, so that means there are a lot of different sizes to choose from! Don’t worry, we’ll help you make sense of it all. Take a look at our universal size guide as well as size guides from each of the brands we stock.
This style is unisex.
Blundstone Sizes |
US Men's |
AU/US Women's |
Europe |
Foot length(mm) |
3 |
4 |
6 |
35.5 |
220 |
4 |
5 |
7 |
37 |
228 |
5 |
6 |
8 |
38 |
237 |
6 |
7 |
9 |
39 |
246 |
7 |
8 |
10 |
41 |
254 |
8 |
9 |
11 |
42 |
262 |
|
9 |
10 |
|
43 |
271 |
|
YOUTH BOYS
AGE |
8 |
10 |
12 |
14 |
Height cm |
116-128 |
128-140 |
140-152 |
152-164 |
Chest cm |
64 |
71 |
78 |
86 |
Hip cm |
68 |
74 |
81 |
88 |
Waist cm |
59 |
63.5 |
68 |
75 |
Across Shoulder cm |
29 |
30.75 |
33.5 |
36 |
Inseam cm |
59.5 |
65.5 |
71.5 |
77.5 |
Thigh cm |
39 |
43 |
47 |
51 |
Mens Kathmandu Jackets
Size |
Chest (cm) |
Waist (cm) |
Hip (cm) |
XS |
83-89 |
70-76 |
82-88 |
S |
89-95 |
76-82 |
88-94 |
M |
95-101 |
82-88 |
94-100 |
L |
101-107 |
88-94 |
100-106 |
XL |
107-114 |
94-101 |
113-121 |
XXL |
114-122 |
101-109 |
121-129 |
3XL |
122-130 |
109-117 |
121-129 |
Kids Crocs
Please select your US/AU size equivalent.
Tip: If your child is between sizes, round up. Juniors size 3 and up can also shop our adult sizes. Little Kid (ages 1-5) sizes can be found below for Toddler-specific styles.
AU / US |
Euro |
UK |
CM |
1 |
32 |
13 |
20 |
2 |
33 |
1 |
20.8 |
3 |
34 |
2 |
21.7 |
4 |
36 |
3 |
22.5 |
5 |
37 |
4 |
23.3 |
6 |
38 |
5 |
24.2 |
7 |
39 |
6 |
24.8 |
Toddlers Crocs
Please select the US size equivalent. Little Kids' (Ages 1-5).
AU / US |
UK |
CM |
3 |
2 |
10.7 |
4 |
3 |
11.5 |
5 |
4 |
12.3 |
6 |
5 |
13.2 |
7 |
6 |
14 |
8 |
7 |
14.9 |
9 |
8 |
15.7 |
10 |
9 |
16.6 |
11 |
10 |
17.4 |
12 |
11 |
18.3 |
Toddlers Crocs
Please select the US size equivalent. Little Kids' (Ages 1-5).
AU / US |
UK |
CM |
3 |
2 |
10.7 |
4 |
3 |
11.5 |
5 |
4 |
12.3 |
6 |
5 |
13.2 |
7 |
6 |
14 |
8 |
7 |
14.9 |
9 |
8 |
15.7 |
10 |
9 |
16.6 |
11 |
10 |
17.4 |
12 |
11 |
18.3 |
Kids Crocs
Please select your US/AU size equivalent. Tip: If your child is between sizes, round up. Juniors size 3 and up can also shop our adult sizes.
AU / US |
Euro |
UK |
CM |
1 |
32 |
13 |
20 |
2 |
33 |
1 |
20.8 |
3 |
34 |
2 |
21.7 |
4 |
36 |
3 |
22.5 |
5 |
37 |
4 |
23.3 |
6 |
38 |
5 |
24.2 |
7 |
39 |
6 |
24.8 |
UNISEX SIZE CHART
UK |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
US MENS
|
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
US WOMENS |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
EU |
36 |
37 |
38 |
39 |
41 |
42 |
43 |
45 |
46 |
47 |
Womens Kathmandu Jackets
Size |
Bust (cm) |
Waist (cm) |
Hip (cm) |
6 |
83 |
66 |
89 |
8 |
88 |
71 |
94 |
10 |
93 |
76 |
99 |
12 |
98 |
81 |
104 |
14 |
104 |
87 |
110 |
16 |
110 |
94 |
117 |
Mens Tops
Size |
Chest |
Collar |
XS |
86-91 |
37 |
S |
91-96 |
38 |
M |
96-101 |
41 |
L |
101-106 |
43 |
XL |
106-111 |
44 |
XXL |
111-116 |
46 |
Mens Jackets
Size |
Neck Width (cm) |
Chest (cm) |
Shoulders (cm) |
Biceps (cm) |
XS |
17.2 |
98 |
41.9 |
37.6 |
S |
17.9 |
103 |
44.5 |
38.8 |
M |
18.5 |
108 |
47 |
41 |
L |
19.1 |
113 |
49.5 |
42.2 |
XL |
19.8 |
118 |
52.1 |
43.4 |
XXL |
20.4 |
123 |
54.6 |
44.6 |
XXXL |
21 |
128 |
57.2 |
45.8 |
Mens Bottoms
Size (Waist) |
Waist (cm) |
Inside Leg |
Hips (boardshorts only) |
28 |
71 |
82 |
100 |
29 |
74 |
82 |
100 |
30 |
76 |
83 |
102 |
31 |
79 |
83 |
104 |
32 |
81 |
84 |
107 |
33 |
84 |
84 |
109 |
35 |
89 |
85 |
X |
36 |
91 |
86 |
117 |
37 |
94 |
86 |
X |
38 |
97 |
87 |
122 |
39 |
99 |
87 |
X |
40 |
102 |
88 |
127 |
41 |
104 |
88 |
X |
42 |
107 |
88 |
132 |
Mens Footwear
Please choose
this size when adding to cart
Australia |
Europe |
USA |
UK |
CM’s |
7 |
40 |
7 |
6 |
24.4 |
8 |
41 |
8 |
7 |
25.4 |
9 |
42. |
9 |
8 |
26 |
10 |
43 |
10 |
9 |
27 |
11 |
44 |
11 |
10 |
27.9 |
12 |
45 |
12 |
11 |
28.6 |
13 |
46 |
13 |
12 |
29.4 |
14 |
47 |
14 |
13 |
30.2 |
15 |
48 |
15 |
14 |
31 |
16 |
49 |
16 |
15 |
31.8 |
Unisex Footwear
This style is unisex, and therefore uses men's sizing. Please choose this size when adding to cart
Australia |
US Men's |
US Women's |
Europe |
UK |
CM's |
3 |
3 |
5 |
35 |
3 |
22 |
4 |
4 |
6 |
36.5 |
4 |
23 |
5 |
5 |
7 |
37.5 |
5 |
24 |
6 |
6 |
8 |
39 |
6 |
25 |
7 |
7 |
9 |
40 |
7 |
26 |
8 |
8 |
10 |
41.5 |
8 |
27 |
9 |
9 |
11 |
42.5 |
9 |
28 |
10 |
10 |
12 |
44 |
10 |
29 |
11 |
11 |
13 |
45 |
11 |
30 |
12 |
12 |
14 |
46.5 |
12 |
32 |
DC Footwear
This style uses US sizing. Please choose this size when adding to cart
US Men's |
AUS/UK |
EU |
CM's |
7 |
6 |
39 |
25 |
8 |
7 |
40.5 |
26 |
9 |
8 |
42 |
27 |
10 |
9 |
43 |
28 |
11 |
10 |
44.5 |
29 |
12 |
11 |
45.5 |
30 |
13 |
12 |
47 |
31 |
Nike Unisex Footwear
This style is unisex, and therefore uses men's sizing. Please choose this size when adding to cart
Australia |
US Men's |
US Women's |
CM's |
3 |
3 |
4 |
21 |
4 |
4 |
5 |
22 |
5 |
5 |
6 |
23 |
6 |
6 |
7 |
23.5 |
7 |
7 |
8 |
24.5 |
8 |
8 |
9 |
25.5 |
9 |
9 |
10 |
26 |
10 |
10 |
11 |
27 |
11 |
11 |
12 |
28 |
12 |
12 |
13 |
29 |
13 |
13 |
14 |
29.5 |
14 |
14 |
15 |
30.5 |
Croc size chart
This style is unique sizing, please select your AU/US MENS size equivalent. Tip: If you’re in between sizes, round up. For wide feet order your normal size. Platform Crocs run small, please size up.
AU/US Mens |
AU/US Womens |
EU |
CM |
1 |
3 |
32-33 |
19 |
2 |
4 |
33-34 |
20 |
3 |
5 |
34-35 |
21 |
4 |
6 |
35-36 |
22 |
5 |
7 |
36-37 |
23 |
6 |
8 |
38-39 |
24 |
7 |
9 |
39-40 |
25 |
8 |
10 |
40-41 |
26 |
9 |
11 |
41-42 |
27 |
10 |
12 |
42-43 |
28 |
11 |
13 |
43-44 |
29 |
12 |
14 |
44-45 |
30 |
Vans Unisex Footwear
This style is unisex, and therefore uses men's sizing. Please choose this size when adding to cart
Australia |
US Men's |
US Women's |
Europe |
UK |
3 |
3 |
4.5 |
34 |
2 |
4 |
4 |
5.5 |
35 |
3 |
5 |
5 |
6.5 |
36.5 |
4 |
6 |
6 |
7.5 |
38 |
5 |
7 |
7 |
8.5 |
39 |
6 |
8 |
8 |
9.5 |
40.5 |
7 |
9 |
9 |
10.5 |
42 |
8 |
10 |
10 |
11.5 |
43 |
9 |
11 |
11 |
12.5 |
44.5 |
10 |
12 |
12 |
13.5 |
46 |
11 |
13 |
13 |
- |
47 |
12 |
14 |
14 |
- |
48 |
13 |
Mens Wetsuits
Size |
Height |
Height Range |
Weight |
Waist |
Neck |
Chest |
Leg Length |
Body Length |
S |
174 |
170-175 |
60-70 |
76 |
38 |
95 |
68 |
64 |
MS |
174 |
170-175 |
65-70 |
81 |
39 |
100 |
68 |
64 |
M |
178 |
175-180 |
70-80 |
81 |
39 |
100 |
71 |
66 |
MT |
183 |
180-185 |
70-80 |
81 |
39 |
100 |
74 |
68 |
LS |
178 |
175-180 |
80-85 |
86 |
40.2 |
105 |
71 |
66 |
L |
183 |
180-185 |
80-85 |
86 |
40.2 |
105 |
74 |
68 |
LT |
188 |
185-190 |
80-85 |
86 |
40.2 |
105 |
77 |
70 |
XLS |
183 |
180-185 |
85-95 |
91 |
42 |
110 |
74 |
68 |
XL |
188 |
185-190 |
85-95 |
91 |
41.4 |
110 |
77 |
70 |
XLT |
198 |
193-200 |
90-105 |
91 |
41.4 |
110 |
73 |
74 |
XXL |
193 |
188-195 |
95-105 |
96 |
42.6 |
115 |
80 |
72 |
XXXL |
193 |
188-195 |
105-115 |
101 |
43.8 |
120 |
80 |
72 |
Vans Kids Unisex Footwear
This style is unisex, and uses Australian sizing. Please choose this size when adding to cart
Australia |
US |
UK |
EU |
10 |
10 |
9.5 |
26.5 |
11 |
11 |
10.5 |
27.5 |
12 |
12 |
11.5 |
29 |
13 |
13 |
12.5 |
30.5 |
1 |
1 |
13.5 |
31.5 |
2 |
2 |
1.5 |
32.5 |
3 |
3 |
2.5 |
34 |
4 |
4 |
3 |
35 |
5 |
5 |
4 |
36.5 |
Womens Swimwear
Universal |
AUS |
USA |
UK |
Bust (cm) |
Waist (cm) |
Hip (cm) |
Underbust (cm) |
XXS |
6 |
2 |
32 |
82 |
62 |
92 |
69 |
XS |
8 |
4 |
34 |
84.5 |
64.5 |
94.5 |
71.5 |
S |
10 |
6 |
36 |
87 |
67 |
97 |
74 |
M |
12 |
8 |
38 |
92 |
72 |
102 |
79 |
L |
14 |
10 |
40 |
97 |
77 |
107 |
84 |
XL |
16 |
12 |
42 |
102 |
82 |
112 |
89 |
XXL |
18 |
14 |
44 |
107 |
87 |
117 |
94 |
Womens Tops
Universal |
AUS |
US |
UK |
EU |
Bust (cm) |
XXS |
6 |
2 |
6 |
34 |
79 |
XS |
8 |
4 |
8 |
36 |
82 |
S |
10 |
6 |
10 |
38 |
86 |
M |
12 |
8 |
12 |
40 |
92 |
L |
14 |
10 |
14 |
42 |
96 |
XL |
16 |
12 |
16 |
44 |
102 |
Womens Bottoms
Universal |
AUS |
US |
UK |
EU |
Waist (cm) |
Hip (cm) |
XXS |
6 |
2 |
6 |
24 |
62 |
88.5 |
XS |
8 |
4 |
8 |
26 |
65 |
91 |
S |
10 |
6 |
10 |
28 |
70 |
96 |
M |
12 |
8 |
12 |
30 |
75 |
101 |
L |
14 |
10 |
14 |
32 |
80 |
106 |
XL |
16 |
12 |
16 |
34 |
85 |
111 |
Womens Dresses
Universal |
AUS |
US |
UK |
EU |
Bust (cm) |
Waist (cm) |
Hip (cm) |
XXS |
6 |
2 |
6 |
34 |
79 |
61 |
86 |
XS |
8 |
4 |
8 |
36 |
82 |
63 |
88.5 |
S |
10 |
6 |
10 |
38 |
86 |
68 |
93.5 |
M |
12 |
8 |
12 |
40 |
92 |
73 |
98.5 |
L |
14 |
10 |
14 |
42 |
96 |
75 |
102.5 |
XL |
16 |
12 |
16 |
44 |
102 |
83 |
108 |
Womens Footwear
Please choose
this size when adding to cart
AUS |
EURO |
USA |
UK |
CM |
5 |
35-36 |
5 |
3 |
21.6 |
6 |
36-37 |
6 |
4 |
22.5 |
7 |
37-38 |
7 |
5 |
23.5 |
8 |
38-39 |
8 |
6 |
24.1 |
9 |
39-40 |
9 |
7 |
25.1 |
10 |
40-41 |
10 |
8 |
25.9 |
11 |
41-42 |
11 |
9 |
26.7 |
Womens Wetsuits
Size |
Height |
Chest |
Waist |
Seat |
Thigh |
Arm |
Leg |
Body |
4 |
155 |
78 |
61 |
86.5 |
48 |
48.4 |
66 |
54.8 |
6 |
160 |
82 |
63.5 |
89 |
51 |
49.6 |
68.5 |
56 |
8 |
165 |
86 |
66 |
91.5 |
53.5 |
50.8 |
71 |
57.2 |
10 |
170 |
90 |
68.5 |
94 |
56 |
52 |
73.5 |
56 |
12 |
175 |
94 |
71 |
96.5 |
58.5 |
53.2 |
76 |
59.6 |
14 |
178 |
96 |
73.5 |
99 |
61 |
54.4 |
78.5 |
60.8 |
Boys Clothing
Age/Size |
Height |
Chest |
Waist |
Hips |
Shoulder to Crotch |
8 |
130 |
68 |
60 |
70 |
118 |
10 |
140 |
72 |
64 |
74 |
126 |
12 |
150 |
76 |
68 |
78 |
136 |
14 |
160 |
80 |
72 |
82 |
144 |
16 |
170 |
84 |
76 |
86 |
152 |
Kids Footwear
Please choose
this size when adding to cart
Australia |
Euro |
USA |
UK |
CM |
0 |
31 |
13 |
12 |
19.1 |
1 |
32 |
1 |
13 |
19.7 |
2 |
33 |
2 |
1 |
20.6 |
3 |
34 |
3 |
2 |
21.6 |
4 |
36 |
4 |
3 |
22.2 |
5 |
37 |
5 |
4 |
23.2 |
6 |
38 |
6 |
5 |
24.1 |
7 |
39 |
7 |
6 |
24.8 |
Boys Wetsuits
Size |
Height |
Height Range |
Weight |
Waist |
Neck |
Chest |
Leg |
Body |
2 |
91 |
88-95 |
11-13 |
53.5 |
25.5 |
56 |
28 |
38 |
4 |
104 |
101-108 |
15-17 |
56 |
26.7 |
60.5 |
35 |
42.7 |
6 |
118 |
115-125 |
20-25 |
58.5 |
27.9 |
65 |
42 |
47.4 |
8 |
130 |
125-136 |
25-30 |
61 |
29.1 |
69.5 |
49 |
52.1 |
10 |
142 |
136-145 |
30-35 |
63.5 |
30.5 |
74 |
56 |
51 |
12 |
152 |
145-152 |
35-40 |
66 |
31.7 |
78.5 |
60.5 |
55.5 |
14 |
162 |
152-157 |
40-50 |
68.5 |
32.9 |
83 |
65 |
60 |
16 |
172 |
157-165 |
50-60 |
71 |
34.1 |
87.5 |
69.5 |
64.5 |
Girls Clothing
Age/Size |
Height |
Chest |
Waist |
Hips |
Shoulder to Crotch |
8 |
130 |
68 |
60 |
72 |
116 |
10 |
140 |
74 |
62 |
78 |
124 |
12 |
150 |
80 |
64 |
84 |
134 |
14 |
160 |
86 |
66 |
90 |
142 |
16 |
165 |
92 |
68 |
96 |
150 |
Kids Unisex Clothing
Age/Size |
Height |
Chest |
Waist |
Hips |
Shoulder to Crotch |
8 |
130 |
68 |
60 |
72 |
116 |
10 |
140 |
74 |
62 |
78 |
124 |
12 |
150 |
80 |
64 |
84 |
134 |
14 |
160 |
86 |
66 |
90 |
142 |
16 |
165 |
92 |
68 |
96 |
150 |
Kids Footwear
Please choose
this size when adding to cart
Australia |
Euro |
USA |
UK |
CM |
0 |
31 |
13 |
12 |
19.1 |
1 |
32 |
1 |
13 |
19.7 |
2 |
33 |
2 |
1 |
20.6 |
3 |
34 |
3 |
2 |
21.6 |
4 |
36 |
4 |
3 |
22.2 |
5 |
37 |
5 |
4 |
23.2 |
6 |
38 |
6 |
5 |
24.1 |
7 |
39 |
7 |
6 |
24.8 |
Girls Wetsuits
Size |
Height |
Height Range |
Weight |
Waist |
Neck |
Chest |
Leg |
Body |
2 |
91 |
88-95 |
11-13 |
53.5 |
25.5 |
56 |
28 |
38 |
4 |
104 |
101-108 |
15-17 |
56 |
26.7 |
60.5 |
35 |
42.7 |
6 |
118 |
115-125 |
20-25 |
58.5 |
27.9 |
65 |
42 |
47.4 |
8 |
130 |
125-136 |
25-30 |
61 |
29.1 |
69.5 |
49 |
52.1 |
10 |
142 |
136-145 |
30-35 |
63.5 |
30.5 |
74 |
56 |
51 |
12 |
152 |
145-152 |
35-40 |
66 |
31.7 |
78.5 |
60.5 |
55.5 |
14 |
162 |
152-157 |
40-50 |
68.5 |
32.9 |
83 |
65 |
60 |
16 |
172 |
157-165 |
50-60 |
71 |
34.1 |
87.5 |
69.5 |
64.5 |
Toddlers Clothing
Size |
Height |
Chest |
Waist |
Head Circumference |
0-1 |
80-85 |
45-47.5 |
45-47.5 |
48 |
2 |
90 |
50 |
47.5 |
48 |
4 |
100 |
55 |
50 |
50 |
6 |
110 |
60 |
52.5 |
50 |
8 |
130 |
65 |
55 |
52 |
Toddlers Footwear
Please choose
this size when adding to cart
Euro |
AU/US |
UK |
CM |
19 |
3 |
2 |
11.8 |
20 |
4 |
3 |
12.2 |
21 |
5 |
4 |
12.7 |
22 |
6 |
5 |
13 |
23 |
7 |
6 |
14 |
24 |
8 |
7 |
14.6 |
25 |
9 |
8 |
15.6 |
27 |
10 |
9 |
16.5 |
28 |
11 |
10 |
17.1 |
30 |
12 |
11 |
18.1 |
Toddlers Wetsuits
Size |
Height |
Chest |
Waist |
Head Circumference |
0-1 |
80-85 |
45-47.5 |
45-47.5 |
48 |
2 |
90 |
50 |
47.5 |
48 |
4 |
100 |
55 |
50 |
50 |
6 |
110 |
60 |
52.5 |
50 |
8 |
130 |
65 |
55 |
52 |