The POC Sports Spine VPD Air Vest is a mountain biking airbag vest that's lightweight and breathable without sacrificing its dependability. The mesh flexes with your body as you ride and lets air flow so that you don't overheat. Its low profile design is subtle and stylish, which is ideal if you're the type of rider who hates feeling too bulky. Adjust the waist strap to the best fit for you and enjoy the comfort that reliable back support can bring to your riding.