The Black™ Hi-Viz Motorbike Vest is packed with features... Specifications Include Designed to be Worn Over Your Existing Jacket - Sized to correspond with the size of your jacket, in most cases a size M vest will fit over a size M jacket, all the other sizes follow suit Adjustable Fit - Twin Velcro adjusters on each side mean that it is easy to find the correct Full Length Front Zip - This helps to make putting the vest on nice and easy, it also means that once adjusted, you can leave the vest over your jacket and take both off at the same time Large Reflective Panels on Front and Back - Designed for maximum visibility to make sure you are seen even on the darkest of nights Rear Pocket - Handy non waterproof rear pocket to store small items Mesh Inner Lining