Stay warm and visible as you power through late night runs in this half zip that features reflective detailing. rulu™ Stretchy, naturally breathable Rulu™ fabric is sweat-wicking and buttery soft four-way stretch sweat-wicking buttery-soft handfeel naturally breathable features Designed for: Run Lycra®: Added Lycra® fibre for shape retention Zippered pocket: Stash your stuff in this discreet seam pocket Sleeves won't ride up: Thumb loops keep your sleeves down when you run Shine-bright : Reflective detail helps keep you on the radar in low light