We always recommend trying on a pack for the best size and personal preference, when you are able come in-store

We also provide size charts for our Trail Running Hydration packs, time to pull out the tape measure.

The Ultimate Direction hydration packs have been upgraded from the series 4 to 5 with new enhanced features, more pockets, better sync adjustable system for sizing.

Even more lightweight, than before with more pockets.

The Video below provides instructions on how to fit your trail running pack.

Click here or Ultimate Direction Size Charts for Trail Running Packs.