I received this from a family with a child who is turning 4 this year, after they had their first child. However, I had already purchased a Konny and the size didn't fit, so I only tried it on once. The previous owner also seems to have only used it for short periods when their grandchild visited, so it's practically unused and in excellent condition. I used a Konny for both my first and second child, and it was a mesh material. Babies tend to get hot easily, but it was usable even in winter. Size: M Mint Green I will fold it up compactly for shipping. Please read my profile to avoid any issues.