Striped design long-sleeved romper with full buttons for easy on and off. - Design: Striped - Colors: White, Navy - Features: Full button, long sleeves, footed Thank you for viewing. This material can be used from autumn to early spring. Babies tend to get hot easily, so I think it's easy to use even indoors in winter. There is some yellowing on the sleeves. I haven't bleached it, so please address it with washing if you are concerned.