Vents to the side hemline. Zip fastening to the rear. Underarm to underarm (unstretched): 19.5.All our items are guaranteed authentic. The item "TIBI Black 100% Silk High Neckline Long Sleeve Formal Blouse Top UK10 BNWT" is in sale since Tuesday, March 07, 2017. This item is in the category "Clothes, Shoes & Accessories\Women's Clothing\Tops & Shirts". The seller is "secondwavecouture" and is located in London. This item can be shipped worldwide.