
Ultimate Direction
Fastpack 20
Men's
590g (Men's · M)
Best for: Vest-like front access with real pack volume…
Running
Race hydration vests, running backpacks and fastpacking packs — capacity, bounce control and race-kit room.
Filterable catalog · 37 products
9 matches

Ultimate Direction
Men's
590g (Men's · M)
Best for: Vest-like front access with real pack volume…

Black Diamond
Unisex
330g (Unisex · M ref.)
Best for: Much lighter empty than most 15–20L running b…

Ultimate Direction
Women's
580g (Ref. · Men's US 9)
Best for: Women’s torso/chest patterning without droppi…

Black Diamond
Unisex
400g (Unisex · M ref.)
Best for: Light for 22L.

Osprey
Men's
870g (Men's · M)
Best for: Osprey fit system dials torso length better t…

Osprey
Women's
850g (Ref. · Men's US 9)
Best for: Women’s Osprey patterning with the same Veloc…

Ultimate Direction
Unisex
700g (Unisex · M ref.)
Best for: True overnight fastpacking volume while keepi…

Salomon
Unisex
450g (Unisex · M ref.)
Best for: Familiar Salomon harness feel with backpack-s…

Osprey
Men's
980g (Men's · M)
Best for: Osprey load carry scales better than stuffing…
Prefilter the catalog by how you train.
Jump to shortlists or prefiltered catalog views.
Editorial decision pages — not a duplicate of the filter UI.

Hydration vests and packs for trail, ultra and long training — capacity from Product specs.
5 recommendations

Running backpacks and fastpacking packs for big trail days, overnights and commute carry — distinct from race hydration vests.
9 recommendations

Trail-focused hydration vests for training and race days on dirt.
4 recommendations

Higher-capacity vests for ultra and long adventure days.
4 recommendations

Marathon-training hydration without defaulting to ultra packs.
4 recommendations
Side-by-side picks with product photos — open any pair for the full breakdown.


Trail/ultra race vest alternatives.
Compare →

Same race harness family — ultra volume versus lighter race carry.
Compare →

Ultra-capable Salomon vest versus UD race-vest layout.
Compare →

Two light race vests for long runs and trail days.
Compare →

Men’s and women’s Osprey trail pack counterparts.
Compare →

Two light race-vest options for road and trail.
Compare →

Two premium CamelBak run vests with different orientations.
Compare →

Overnight / big-day fastpack versus race hydration vest.
Compare →

Two ~20 L class running / fastpacking day packs.
Compare →

BD Distance fastpacking volume versus UD Fastpack.
Compare →

Mid-capacity trail packs between race vests and full fastpacks.
Compare →How to choose
Running vests and packs for flasks, layers and nutrition on long and trail days.
If you’re not carrying flasks yet, solve hydration with a belt first. Buy a vest when soft-flask volume is weekly.
Decision factors — deeper detail lives in buying guides.
Only brands with published products in this category.