Nathan Marathon Waist Pak Color:Black Flexible front opening can be

Flexible front opening can be adjusted on the run

Made with NB Heat technology

and maximizes running efficiency

Comfortable coverage

Weight: 130 grams (4

Nathan Marathon Waist Pak Color:Black Flexible front opening can beProduct Description: Lightweight and versatile training pak for runners and walkers, with a large front zipper pocket for your smartphone and other running essentials. Product Features: Larger zippered pocket fits most smartphones Compact zippered pocket carries small essentials Front expandable stretch pockets for running essentials Race ready features include gel loops and gel trash stash pocket Pocket Capacity: 33 cu in 0. 5 Liters