Building off the wildly successful original, the UltrAspire Revolution 2. 0 Race Vest steps things up with upgraded features such as an enlarged zippered front compartment, improved sternum strap, and increased storage space. This lightweight and low profile vest keeps you prepared for long training runs and race days alike without weighing you down or restricting mobility. Large holed microfiber mesh shoulder straps offer excellent breathability and moisture wicking performance, and soft and supple perimeter binding is comfortable, even against bare skin. A new lighter weight rear holster secures the included 26oz water bottle. Multiple zippered and stretch mesh pockets allow easy access to energy gels, extra water bottle, spare layers, snacks, and whatever else you might need along the way. The upgraded sternum strap keeps the pack from bouncing around while offering better range of motion, and it also makes taking the pack on and off quicker and easier.