Lululemon Athletica It’s Rulu Run Long Sleeve Size: 4 Excellent Preowned Condition Runs small. WHY WE MADE THIS It's Rulu Run Long Sleeve 1. Cold out? Don't miss a run with this warm long sleeve 2. Rulu fabric is soft, sweat-wicking, four-way stretch, and quick-drying 3. Added Lycra® fibre for stretch and shape retention 4. Our jacquard technique engineers artwork into the fabric to create a rich texture 5. Underarm gusset improves mobility and minimizes chafe Thumbholes and Cuffins ™M 7. Zippered pocket 8. Reflective details 9. Slim fit, hip length