So soft and breathable! We live in California, so light, soft, and CUTE boy clothes are a must! My boy is wearing 12-18 months here. It's perfect, and he has room to grow! His head is kind of big, so some boutique stuff is hard to get over his head, but this top wasn't bad. It was easier than the Lulu and Roo pocket t-shirts in 12-18 months that we purchased.