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These are made of 100% ring-spun cotton for solid colors. Other color variations include polyester. 
.: 100% combed ringspun cotton (fiber content may vary for different colors)
.: Light fabric (5.0 oz/yd² (170 g/m²))
.: 



 
NB (0-3M)
6M
12M
18M
24M




Width, in
7.24
8.74
9.72
10.75
11.73


Length, in
10.75
11.73
12.76
13.74
14.76


Sleeve length, in
2.50
2.76
3.00
3.25
3.50


Size tolerance, in
1.00
1.00
1.00
1.00
1.00



 
.: Infant unisex fit