Gray M size This is a cute item that goes well with both a long-sleeved T-shirt and a blouse♡ Length: 105cm from the top of the shoulder straps to the top of the bust Shoulder strap adjustment: ○ Width: 47.5cm It's polyester, but the fabric is sturdy. Back slit: 28cm The slit area has been hand-sewn for repair. It's not very noticeable, but please understand this before purchasing. ☺︎