These unisex onesies have lap shoulders and are a blend of ring-spun cotton and polyester. Whether your little one is helping you wire a tree, going on a "bonsai in the wild" hike, or simply matching your own RMBS gear, our RMBS onesie is the ideal attire! We recommend sizing up one if you're not sure what size to get.
 
 
NB (0-3M)
6M
12M
18M
24M
Width, in
7.25     
8.75     
9.75     
10.75     
11.75     
Length, in
10.75
11.75
12.75
13.75
14.75
Sleeve length, in
2.5
2.75
3
3.25
3.5