The Nathan QuickStart 4L Unisex Hydration Vest offers a comfortable fit and convenient storage for all your running essentials. With adjustable front and side straps, a main back zippered pocket, and a 1.5L BPA-free bladder, this vest is a must-have for any runner. Easily access nutrition and your phone with the front storage, which can fit any larger phone. The soft perimeter binding prevents chafing, and the one size fits most for chest sizes 26-52'. Don't miss out on this essential piece of gear!

• Includes 1.5L bladder
• Front storage for nutrition and phone - fits large phones
• Main back zippered pocket for extra layers and other running essentials
• Adjustable front and side straps for a perfect fit
• Soft perimeter binding prevents chafing
• One size fits most: 26 - 52' chest size
• Weight: 5.5 oz (without bladder), 9.5 oz (with bladder)