This denim jean jacket is a classic. There is no sizing inside the jacket but it fits like a women’s size 6 or small. I am a size 8 on the top. I can wear the jacket with a tank but if I have sleeves it feels too snug. Hope that helps with sizing. Length of Jacket: 22" Width of Chest: 16" Length of Sleeve: 25" Ships from smoke free and pet free home. Offers welcome.