This is a coverall from Kimuratan. The lining is made of cotton material, designed to keep babies comfortable, and it feels really nice to the touch ^_^ I tried it on, but since this size was for summer, I missed the chance to wear it and it's almost unused! I'm selling it because my child has outgrown it. Type: Coverall Sleeve Length: Long Sleeve Design: Check I'm a beginner and still inexperienced, but I will do my best to assist you, so thank you for your understanding. ★ Purchases without comments and immediate purchases are welcome. I will consider price negotiations and requests for your desired price, so please feel free to ask. ★ I work full-time and cannot use my personal cell phone during work, so I may be late in checking messages. I will reply the next morning. Thank you for your understanding. ★ I do not have pets or smoke, but this is a used item, so please refrain from purchasing if you are concerned. ★ Regarding shipping, I will ship it within the next day, or within 1-2 days. I will ship via Rakuraku Mercari or Yu-Yu Mercari. I will change the shipping method depending on the product and packaging situation, so thank you for your understanding. If you have any questions, please feel free to ask. I will try my best to ensure a pleasant transaction, so thank you for your cooperation.