This is a frill blouse from Simplicite. It's made of cotton and is cool! I've used it a few times and kept it at home. There are no noticeable stains, but there are some wrinkles, so please purchase with understanding. m(_ _)m -------------------------------------------- This blouse has a cute, fluffy tiered design ◎ The sleeves are French sleeves, so it seems like they will cover the areas of your upper arms that you're concerned about! It seems like it can be worn under a slightly loose cardigan without the design of the blouse showing through.