Nathan Marathon Waist Pak 3.0 HBChi25 Sockliner that provides cushioning performance

Sockliner that provides cushioning performance and moisture management for a cooler

Can be clipped to multiple locations for added visibility

proven to help you propel in a forward-rolling motion

making many minor tweaks so you can pursue major gains

expandable

Nathan Marathon Waist Pak 3.0 HBChi25 Sockliner that provides cushioning performanceBuilt for runners who want a versatile carry that adapts to different runs, the Marathon Waist Pack 3. 0 is a sleek, ultra lightweight pack that wears around the waist or crossbody. Ideal for marathon training, daily runs, trail miles, and everyday adventures where you want one bag for multiple uses. Soft, durable, quick drying materials and interior breathable air mesh with chafe free seams keep things comfortable mile after mile. Specs & Features