Grip On 30282 Grip Safety Vest
Be seen and be safe! I wear this vest to run and bike in the dark and it is obvious that drivers can see me much better. The LEDs are nice and bright. You can adjust the blinking pattern or even make the lights stay on continuously. The vest also has broad reflective bands. The mesh fabric helps you to stay cool. The vest is designed to fit loosely, but does not move around too much while I am running. It does not interfere at all while I am on my bike. A velcro adjustment tab on each side lets the vest easily accommodate a wide range of body types and sizes and lets you get a custom fit. The vest is powered by a couple of AA batteries. Since the LEDs use such little power, the batteries will last a long time. My only complaint is that the on/off switch is a little hard to use and is a weak point in the vest's construction. I've used these vests for a few years and I am now on my second one. The first vest worked for about 1.5 years and then the lights went out. I think the little wires near the switch simply broke. But for the price, this is not such a big problem. Just be careful when you store it -- do not wad it up or put something heavy on top of it. Some reviewers may think that you will look dorky running in this vest, but I live in a college town and several students have said the vest is cool!
Update: Some other reviews talk about using this vest with a backpack, so maybe my experience will help you. I carry a backpack when commuting to work on my bike. I am a medium-sized, not fat or thin. I can wear the vest OVER my small backpack without changing its adjustment. I wear the vest UNDER my big packpack and have attached a blinking light to the big pack. Add some spokelits to you wheels are you are good to go!LED Adult / Youth Safety Bicycle Light by Nite Ize