20% lighter and even more breathable than our VaporKrar and VaporHowe vests, the Nathan Pinnacle 4L Hydration Pack/Running Vest fits like a second-skin and adds two new kangaroo pockets to the collection of significant and smart storage spaces. No matter how fast or far you’re running, this vest is built to keep you at the top of your game. Breathable Fabric Lightweight and breathable with tapered back panels to wick moisture away and keep you cool. Smart Storage Essentials are always in reach with 7 thoughtful pockets including two new kangaroo pockets exclusive to Nathan. Integrated Reflectivity High visibility colors combined with 360º reflective graphics provide complete reflective coverage. Plenty of Pockets Same great pockets including water-resistant phone pockets and newly added kangaroo and side pockets for a total of 7. Enhanced Design Compression style comfort with a chafe-free fit now features an enhanced shape with a slightly longer back for efficient, dispersed capacity. 2x 20oz Soft Flasks Hydration includes 2 20oz hydrapak soft flasks with ExoSpine for stability, plus long hose and mouthpiece. Fits Like a Second Skin Designed to keep you moving in total comfort, this vest is lightweight, breathable and adjustable for perfect fit and form.