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Ultimate Direction Fastpack 30 Vest Backpack

Ultimate Direction Fastpack 30 Vest Backpack
 



Price: £140.00
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Description
 
Ultimate Direction Fastpack 30 Vest Backpack
31.7 litres · 690g · Full-side zip access

The Ultimate Direction Fastpack 30 combines a 31.7 litre capacity with vest-style front storage and backpack-style load distribution, giving substantially more carrying space than a conventional running vest without moving frequently needed items away from the front. At 690g, it is suited to ultras, fastpacking, multi-day running and other situations where a larger volume of clothing, food or equipment needs to be carried.

The main compartment combines a roll-top closure with a full-length side zip, so equipment packed deeper inside can be reached without unloading everything from the top. A large rear stretch-mesh area, two side pockets and extensive front storage provide additional places for equipment that needs to remain accessible while moving.

Front hydration pockets accept 500ml Body Bottle 500 and Body Bottle 500 S soft flasks, while the side pockets can accommodate larger bottles up to 750ml. A dedicated rear hydration compartment can take a reservoir up to 3 litres. Bottles and reservoir are not included. The Fastpack 20 offers the same general Fastpack approach with a smaller 23.4 litre capacity, while the Fastpack 40 provides more carrying space.

Features
  • 31.7 litre capacity: Provides substantial carrying space for clothing, food, mandatory kit and equipment while retaining accessible vest-style storage at the front.
  • Front hydration pockets: Two upper pockets with bungee compression accept 500ml Body Bottle 500 and Body Bottle 500 S soft flasks. Soft flasks are not included.
  • Accessible front storage: Two lower open-top pockets, four further stretch-mesh open-top pockets and two water-resistant zipped pockets provide storage for food, phone, maps, headlamp, glasses and other smaller items.
  • Full-side zip access: Opens deep into the main compartment so equipment can be reached without unpacking everything through the top.
  • Roll-top closure: Expands or compresses around changing loads and secures the top of the main compartment.
  • Infiknit and FastFlow back panel: Seamless harness construction combines with a breathable back-panel system to improve airflow and moisture management.
  • Side bottle storage: Two large side pockets can carry clothing, equipment or bottles up to 750ml.
  • External stretch storage: Large full-length rear stretch-mesh storage keeps additional clothing and frequently needed equipment outside the main compartment.
  • 3 litre reservoir compatible: Dedicated rear hydration compartment accommodates a reservoir up to 3 litres. Reservoir not included.
  • Sliding sternum adjustment: Rail-mounted sternum straps allow quick adjustment across the chest.
  • Removable T-hook waistbelt: Height-adjustable belt provides additional support with heavier loads and can be removed when unnecessary.
  • Side fit adjustment: Rib-area straps allow the pack to be adjusted around the runner and changing load.
  • Trekking-pole carry: Dedicated holders secure folding poles and move out of the way when not being used.
  • Secure storage: Water-resistant zipped pockets provide protected storage for phone, wallet, keys and other valuables.
  • Daisy chains: External attachment points provide additional options for securing equipment.
  • Ice-axe loops: Provide external attachment for an ice axe when required.
  • Safety whistle: Integrated into the front harness.
  • Reflective detailing: Adds visibility in low light.
Specifications
Capacity: 31.7 litres / 1934 cubic inches
Weight: Approximately 690g
Dimensions: 48.3cm high × 27.9cm wide × 18.7cm deep
Front hydration: Compatible with 2x 500ml Body Bottle soft flasks, including Body Bottle 500 and Body Bottle 500 S (not included)
Side bottle capacity: Up to 750ml per side pocket
Reservoir compatibility: Up to 3 litres (not included)
Fit: Unisex, sized
Material: 100% polyester
Construction: MonoRip mesh, reinforced ripstop panels and abrasion-resistant 4-way stretch fabric
Sizing & Fit

The Fastpack 30 uses a unisex vest-style harness with sliding sternum adjustment, side/rib adjustment and a removable height-adjustable waistbelt. Measure around the bottom ribs while wearing the clothing you intend to use with the pack.

S/M: 64–102cm / 25–40in
M/L: 76–122cm / 30–48in

The size ranges overlap considerably. A fully loaded pack will fit more closely than an empty one, so intended clothing and typical load should be considered when choosing a size.

Need help choosing?

For an overview of Ultimate Direction running vests and Fastpacks, see our Ultimate Direction pack guide.

If you are deciding how much carrying capacity you need, see our Running Backpacks, Race Vests & Hydration Packs Guide.

If you are unsure about sizing, Fastpack fit, or whether 31.7 litres is appropriate for the equipment you intend to carry, get in touch for straightforward advice.

Ultimate Direction Fastpack Line Video

Average Rating: Average Rating: 4.5 of 5 4.5 of 5 Total Reviews: 9 Write a review »

  0 of 0 people found the following ultra running product review helpful:
 
3 of 5 Frustrated so far… July 1, 2026
Reviewer: Graham from North West England  
I’m disappointed in truth.

The pack rubs the base of my back and I’ve tried quite a few adjustments to alleviate this, to no avail yet. Final option to be tested this weekend is to remove the padded back support and insert a padded lumbar bar at the base to spread the contact points evenly.

My other issues are that the chest pockets aren’t as good as those on the Montane Gecko VP20, the central stitch rows limit their potential.  Also the zipped front pockets don’t fit my iPhone, aren’t really elasticated so are not as accommodating as I’d hoped.

I’m going to preserver with it, see if I can make it work for me, but it’s not been as good a purchase as I’d hoped.

On a bright note, the service from Ultramarathonrunnigstore.com was great, pack arrived ahead of schedule!

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  0 of 0 people found the following ultra running product review helpful:
 
5 of 5 A great backpack. April 25, 2026
Reviewer: Anonymous Person from SOLIHULL, WEST MIDLANDS United Kingdom  
I already had the fastpack 20. This is just the bigger version for when you need to pack more kit for any reason.

The guy who runs this business was happy to give me his best advice -and this was appreciated.





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  0 of 0 people found the following ultra running product review helpful:
 
5 of 5 I ordered both 20 and 30l versions to compare July 22, 2025
Reviewer: Philip Carpenter from Reading, Berkshire United Kingdom  
Keith chatted with me about where the extra volume  came from and knew I ordered both with clear intention to return the least suitable.

The 20 seemed to sit better on my lower back so that's the one I kept.

It served me very well this weekend on back2back 50km runs. Great pack. Very pleased by both it and the service from Keith.  The refund for the unwanted pack was very prompt too!

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  0 of 0 people found the following ultra running product review helpful:
 
5 of 5 Exactly what I es ted July 15, 2025
Reviewer: Carl Hicks from Derby, Derbyshire United Kingdom  


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  0 of 0 people found the following ultra running product review helpful:
 
5 of 5 Fast and easy March 30, 2025
Reviewer: ANDREW JOHNSON from TYNE AND WEAR, Tyne and wear United Kingdom  
Purchased a UD fastpack 30 from here. Product was the cheapest around, and was posted and arrived quickly. Would recommend.

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