Halter neck type Made of knit, so it stretches, but I think it's about S to M size. Measurements taken by a amateur, laid flat (cm): Underbust width: 30 Since it's knit, it stretches, but I think it will fit snugly. There is a pocket inside for inserting pads. Please be aware that this item has been handled by someone else, so please be careful if you are particular about it. Packaging: Simple packaging, will protect from water damage. Recycled materials may also be used.