You set off in the cold. You warm up, or the weather warms up – maybe both – but there's still a bit of a chill in the air as it rushes past you. So, you rip the sleeves off your jacket, stuff them in your pocket, and now you're wearing the gilet you wish you'd been wearing all along!It's not quite as crazy as it sounds: the Rip-Zip uses cunningly designed Quickburst zips to attach an upper sleeve section. These fasten just like normal zips, but quickly pull apart so you don't have to stop your run and fiddle with them when you want to convert to a gilet.As well as having that clever trick up its sleeves, the Rip-Zip is a well specifed jacket (and gilet), using breathable, wind and water resistant Activelite fabric. It's compatible with Ronhill LED products (as well as featuring reflective tape), has a deep microfleece-lined collar, and under the removable shrug, a mesh shoulder-panel enhances ventilation.