by U & I


A 100% sturdy cotton longsleeve is a true classic and timeless piece that can easily transition to siblings. The sleeves are easy to roll up and is also cool to use as a long tee on leggings or biker shorts, like our Bom Bom legging. 

NOTE: the sizing of U & I is different than our other brands. Their XS runs like an S in other brands. That’s why their XS fits right for 2-3 year olds and their S fits for 3-4 year olds. 

The 2-3 Years (XS) size can also fit 1-2 year olds, because the sleeves are easy to roll up.  

100% cotton


Wash preferably cold to be kind of our nature and to prolong the quality of the product. We care about kids skin and our planet.

Use the size chart to find the right size