Nathan Sports Belts

Nathan TrailMix Plus Insulated Hydration Belt 3.0


This Nathan running belt is great for hydration and storage, and it's updated with a larger expandable pocket for your phones and other items you need fast access to.

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Use one of the best running belts for all of your water and storage needs with the Nathan TrailMix Plus Insulated Hydration Belt 3.0.

Nathan updated the holster design of the belt to provide easy, one-handed access to your hydration with less bounce. The belt contains two 10 oz insulated flasks with Push-Pull Blast Valve™ caps to give you plenty of hydration when running.

There’s loads of storage in the Trail Mix Plus Belt—a large expandable front zippered pocket is designed to fit most large smartphones, while an exterior mesh pocket holds your empty nutrition wrappers or other items you need easy and fast access. Plus, there are printed reflective details on the logo and bottles to give 360 degrees of reflectivity.

Stay hydrated with the Nathan TrailMix Plus Insulated Hydration Belt 3.0.

What’s New

The Nathan TrailMix Insulated Hydration Belt 3.0 features a new large expandable front zippered pocket that can fit most phones and an updated holster design that lets you easily access the bottles and nutrition while you run with less bounce.

Materials & Tech Specs

Material: 60% Nylon, 40% Polyester

Storage Capacity: 0.5L / 31 Cu. In

Weight: 10.2 oz / 289 g


Hand wash only (cold) with a mild detergent. Line dry. Do not use bleach, fabric softener, iron or dry clean.

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Based on 2 Verified Reviews

Poor caps

Parker 8 months ago Verified Purchase

These bottles leak! Even after making sure the caps were properly on and the push/pull cap was closed…half of my electrolytes are spilling down my legs less than a mile into my run. Each time I looked down I saw liquid pooling in the cap ready to spill with my next movement.