The sleeves are made of a crinkly material. They are three-quarter length. I think it can be worn in all seasons except summer. I have checked it visually, but I don't see any stains. Please understand that this is a used item before purchasing. I will ship it compactly, so please understand that it may get wrinkled. This is a worn item, so please refrain from purchasing if you are concerned about minor details. Length: Approximately 56cm Sleeve length: Approximately 60cm