Free shipping over is valid in the US lower 48 states only, and is not available for PO Boxes or Military APO/FPO addresses.

Image 1


  • Ultimate Direction: Wasp & Wink Hydration Pack

Related Items


Current Stock:
Out of stock
Out Of Stock
The Wasp has been a long time favorite in the UD line of hydration packs, so we did't want to change it too much. We simply updated the materials and spruced up the styling. The Wasp still has a great fit and rides smooth with access pockets on the front and a secure place for your reservoir in the back.The seamless back panel eliminates chafing, the soft cool wick material promotes air flow and the Power stretch mesh allows you to cram it full of gear - all so you'll forget you even have a pack on!

Specs & Details

  • Seamless back panel prevents abrasion and discomfort
  • Rear stretch mesh pocket and bungee
  • 2 front multi-use stretch mesh pockets
  • 2 larger, front-zippered security pockets are phone compatible
  • 70 oz. reservoir included
Sizing at Chest:

  • 29" - 46" / 73.6 cm - 116.8 cm
  • Measure wearing the clothes you intend to wear
  • A pack full of gear will fit smaller

  • Capacity: 8.9L / 540 cubic inches
  • Weight: 16.25 oz / 460g
  • Product Reviews


    Write A Review

    1. Great Product

      It is a great product for ultra running. I don't use reservoir because I am too lazy to clean it. I can put one or two 500ml water bottles in the top front pockets and make the weight distribution more balanced. It has a lot of space, and I can put one rain jacket and one pants inside the major pocket easily, other emergency stuffs and foods in the secondary pocket, and wallet and keys in the top pocket. I also can tie my zipped running pole easily on the back of my bag. on Apr 14th 2016

    2. Customer Review

      The Wasp has been my product of choice for over 12 years and through uncountable training runs and ultras. The one I recently purchased represents a significant upgrade in terms of comfort and function. My older models created chaffing along the lower edge and the mouthpieces could be problematic. Most annoying was that if I didn't close the water bag properly, it would leak. While I appreciated the cold liquid running down my backside, I had less to drink. Th new model has resolved all of those issues and has exceeded my expectations. Thanks for a great product which I would recommend to fellow runners. William Osheroff on Sep 1st 2015