Detroit Marathon Deluxe Backpack wgt-40004 100% Waterproof: Cosmo Hydroguard™ membrane

100% Waterproof: Cosmo Hydroguard™ membrane keeps water out while maintaining breathability

A breathable engineered mesh upper keeps airflow moving

this trail powerhouse is ready for everything from rocky switchbacks to slick singletrack

Built with powerful magnets that hold up to 18 lbs of force

Engineered with NITROFOAM™ cushioning for maximum energy return

Detroit Marathon Deluxe Backpack wgt-40004 100% Waterproof: Cosmo Hydroguard™ membraneSHIPS END OF AUGUST 2026 This large backpack holds all your running gear, and more! Secure your belongings with the top flap closure, featuring two snap buckles that click securely in place and can be cinched down (or up), depending on how much gear you stuff in. A small outside zipper pocket on top is great for keys and phone, while larger mesh side pockets will fit larger water bottles, snacks and more. A smaller inner pocket is great to hide