Only worn once. Purchased 2nd hand. Rulu™ fabric is sweat-wicking and buttery soft four-way stretch handfeel naturally breathable features. Designed for: Running. Thumbholes: Help keep your sleeves in place and hands warm. Cuffins™ technology: Fold-over cuffs help keep your hands warm. Reflective details: Intentionally placed for visibility in low light. Secure pockets: Help keep your essentials safely stowed. Slim fit: Makes for easy layering.