Lululemon Men's Fast and Free Short-Sleeve Shirt Airflow Size Large NWT 1. 100% pure freedom. This lightweight run top has strategically placed venting so you can catch that runner's high in breezy comfort 2. This lightweight fabric is four-way stretch, sweat wicking and quick-drying 3. More wearing, less washing. This garment was treated with our No-Stink Zinc™ technology to inhibit the growth of odour-causing bacteria on the fabric 4. Front seams are vented for airflow 5. Reflective details 6. Slim fit