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The Optimist Size Guide
Clothing
US
XS
S
M
L
XL
XXL
EU
40
42
44
46
48
50
IT
44
46
48
50
52
54
WAIST
28"
30"
32"
34"
36"
38"
CHEST
35"
37"
39"
41"
43"
45"
Footwear
US
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
EU
40
40.5
41
41.5
42
42.5
43
43.5
44
44.5
45
44.5
46
