Kids' Clothing Shimamura Pajamas with Belly Band Long-sleeved, Long-pants Pajamas Organic Cotton Size 100 Worn for one season. No noticeable stains, so I'm offering them for sale! They're thin, so they might be cold in mid-winter, but they're pajamas that can be used for a long time in spring, autumn, and even in the summer with air conditioning. The pants have a belly band, which prevents your stomach from getting cold. The name is written on the tag, so I've blotted it out.