Ultimate Direction FastpackHER 20 2.0

Regular price$279.90

Fastpacking (women's-specific fit) · 23.0 L · 560 g

Colour: Mist
Size: XS/S
Size chart packs

This chart applies to Ultimate Direction running vests and vest-style packs. Aarn packs are one-size with an adjustable harness, so no chart needed; see the fit notes on the product page, or come in and we'll fit it with weight in it.

Running vests are sized by chest circumference so the load sits tight and bounce-free. Measure your chest, match the band below, then confirm against the size tab on the specific product; models vary and the women-specific Vesta runs a touch narrower.

How to measure your chest

  1. Wrap a soft tape around the fullest part of your chest, under the arms and across the shoulder blades.
  2. Keep it level and snug, not tight. Breathe normally.
  3. Match to the band below. On a boundary, the adjustable sternum straps mean either works: size down for a racier fit, up for layering.

Ultimate Direction vest sizing

Size Chest (cm) Chest (in)
XS 73-84 29-33
S 80-92 31-36
M 84-100 33-39
L 94-114 37-45
XL 100-127 39-50

Women-specific Vesta models run slightly narrower (XS from ~70 cm chest). Some packs (e.g. Fastpack) use S/M and M/L bands rather than single sizes; check the product size tab. Source: Ultimate Direction vest size chart.

✓ Ships from Taupō · ✓ Easy 30-day returns · ✓ Covered by the manufacturer's warranty

The honest take

Best for

Fastpacking (women's-specific fit): fast and light backcountry or trail

Specs

Specifications for Ultimate Direction FastpackHER 20 2.0
Volume 23.0 LAll-day capacity: supported ultras, fastpacking and big missions.
Weight 560 g
Load system Women's-specific rear-load fastpack + vest-style front harness; roll-top + full-side external zipper; height-adjustable T-hook harness; daisy chains
Torso fit X/S, M/L, torso size (M/L) 60-125 cm (23-49 in) as stated; X/S range not given
Pockets 8 exterior pockets: front harness storage (water/phone/maps/food), 2 large side pockets for larger water vessels, large external stretch mesh pockets, zip-down main compartment, key-fob pocket
Hydration Reservoir compatible: Yes (not included); front + side bottle pockets (no bottles included)
Best for Fastpacking (women's-specific fit): fast and light backcountry or trail

Specs published by the manufacturer.

Details + technologies

Brand technologies, in plain English

Ultimate DirectionAdjustable Sternum Straps

Height-adjustable chest straps hook onto rails to fine-tune the fit and stop the front load bouncing.

UD uses adjustable sternum straps across the range: "dynamic sternum straps with hook closure [that] allow for full chest expansion without bounce" on race vests, and "static sternum straps [that] give bounce-free stability for larger loads" on bigger packs. Benefit: dial in the fit and kill front-of-chest bounce as your load changes through a run.

Ultimate DirectionStretch Mesh Pockets

Stretchy open mesh pockets on the front and sides let you stuff gels, gloves or a flask on the move.

UD vests carry "stretch mesh shove-it pockets" plus a "stretch back passthrough pocket… accessible from both sides." Benefit: quick, one-handed stashing with no zip to fumble. Trade-off: open mesh isn't as secure or weatherproof as the zippered chest pockets.

Ultimate DirectionRoll-Top Load System

A roll-top that cinches down or expands with your load, with side-zip access and a comfy pack harness.

The Fastpacks use a "roll-top closure [that] expands or compresses to secure varying capacities," plus a "full, external side zipper" and a harness that "combines Infiknit seamless harness technology with Fastflow breathability." Benefit: one pack that scales from a light day out to a loaded overnighter. Trade-off: a roll-top is less instantly grab-able than a lidded pack.

Every technology explained in plain English. Supplier claims stay clearly labelled as theirs.

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Volume, load and fit. Vests against vests, never against a tramping pack.

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Volume 23.0 L 40.0 L30.0 L
Weight 560 g 850 g810 g
Load system Women's-specific rear-load fastpack + vest-style front harness; roll-top + full-side external zipper; height-adjustable T-hook harness; daisy chains Aarn balance-pocket harnessAarn balance-pocket harness
Torso fit X/S, M/L, torso size (M/L) 60-125 cm (23-49 in) as stated; X/S range not given One size, adjustable 42–56 cm back length; hip belt fits 75–117 cmOne size; hip belt fits 75–117 cm
Pockets 8 exterior pockets: front harness storage (water/phone/maps/food), 2 large side pockets for larger water vessels, large external stretch mesh pockets, zip-down main compartment, key-fob pocket Front balance pockets + stretch stashFront balance pockets + stretch stash
Hydration Reservoir compatible: Yes (not included); front + side bottle pockets (no bottles included) Bladder attachment loop and tube exit; two 750 ml mesh pockets on the shoulder strapsBladder attachment loop and tube exit; two 750 ml mesh pockets on the shoulder straps
Pole carry — YesYes
Best for Fastpacking (women's-specific fit): fast and light backcountry or trail Aarn's fastpacking and thru-hiking pack: happy on anything from a day walk to multi-day missions.Built for fast-and-light adventures: fastpacking, adventure racing, the Camino or big day walks.

Pack fit is worth 20 minutes in person. Book a fitting in Taupō.