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  • Ultimate Direction Fastpacks 25, 35 & 45

Related Items

Fastpack 45

Out Of Stock
People wanted more and they got it - the 'no excuses' Fastpack 45.

Specs & Details

  • Large front storage for water, phone, maps, glasses, or food
  • Sliding rail sternum straps
  • Trekking pole loops
  • Integrated waist belt for heavier loads
  • Waterproof zipper
  • MonoRip Mesh is very strong, but extremely breathable
  • Patented lnfiKnit mesh is an entirely seamless back-panel, waistbelt, and shoulder-strap system to prevent abrasion and discomfort
  • Daisy chains for securing extra gear
  • Two large side pockets for larger water vessels

Sizing at Chest (Unisex):

  • S/M: 26" - 44" / 66 cm - 112 cm
  • M/L: 30" - 50" / 76 cm - 127 cm
  • Measure wearing the clothes you intend to wear
  • A pack full of gear will fit smaller
  • Unisex Sizing - Please confirm your bottom ribs measurement before ordering


  • Secured Volume: 39L / 2380 in3
  • Unsecured Volume: 7.8L / 476 in3
  • Total Volume: 46.8L / 2856 in3
  • Weight: 26.43 oz / 755g
  • Dimensions: 28.3" x 11" x 11" / 72 cm x 28 cm x 28 cm


  • MonoRip Mesh: Breathable, non-stretch, and hydrophobic - this lightweight monofilament mesh is ideal for bounce-free load carrying
  • 100D Robic Triple-Ripstop: High-tenacity nylon for strength and durability
  • Power Span Stretch Mesh: High-strength, durable stretch mesh allows you to see inside pocket to view contents
  • Product Reviews


    Write A Review

    1. UD Fastpack 45

      I recently did softrock and plan on an unsupported Nolans trip after HR100. This pack did the trick for a multi day lightweight pack with easy access to phone, water and gear. I carried about 25 pounds and feel that 30 lbs would be ideal. I can easily fit a bivy/small tent, clothes, pad and sleeping bag and feel comfortable putting in 30 mile days. The pack carried well with the additional waist support. It was ok to run in. I did have some bounce running downhill but I tightened the side supports/straps and that seemed to help immensely. The waist belt also rode up high and I had to adjust every once in a while. I like the new closures and lightweight material. My friend at soft rock had the Fastpack 25. She really liked her pack too. I had no hot spots after 4 days and it held up well. Great product UD! on Jul 7th 2017