The Xinglet is a very effective visibility accessory. A simple belt and suspenders design appeals to runners who may not be very excited about a full vest. The nearly unobtrusive feel and very quick addition as you head out the door – pull it overhead and clip the waistband of the adjustable bottom straps, and you are good to go. The modest price, ease of use, and high visibility appeal to runners, and their loved ones – who are pretty keen about avoiding runner/motorist collisions.