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Spectra® Drop Liner Backpack

Interior Color


Made from space-age material, our Spectra backpack will last longer than any other pack we offer.  Ultra-high molecular weight polyethylene (UHMWP) looks fantastic, has incredible abrasion resistance, and ages gracefully. We got this fabric as a spare roll from the manufacturer who specializes in military applications, but it wasn't quite perfect for bag making. Thanks to our friends at Cilogear, a Kevlar® Xpac backing was applied - making it the ultimate composite material.


  • Small: 15 Liter capacity (1037 Cubic Inches)
    10" wide x 5" deep x 17" tall (25.4cmx12.7cmx43cm)

  • Medium: 24 Liter capacity (1464 Cubic Inches)
    11.5" wide x 9" deep x 21" tall (29cmx23cmx54cm)

  • Large: 35 Liter capacity (2130 Cubic Inches)
    13" wide x 10.25" deep x 23" tall (33cmx26cmx59cm)

      Customer Reviews

      Based on 6 reviews


      Medium drop liner is awesome

      First, take your time and work with Luke. Consider what is on the site as a starting point. I had a few specific desires and Luke took care no problem. The bag is extremely well made, beautiful, and useful. First day carrying got compliments and questions from strangers in an airport. Basically my ideal bag. Stop lurking and questioning and pull the trigger.

      Worth every penny

      The Spectra Dropliner backpack was purchased as a gift for my spouse. She wanted a single backpack for all her travels. Must be lightweight, Weatherproof, spacious, tough, and, above all, an aesthetic that is clean, simple and not suggestive of backcountry hiking or even remotely “tactical”. This backpack exceeds her wishes in every category and she is extremely pleased.

      Communication with the Luke was excellent. He answered multiple questions along the way and you can tell takes great pride in his craft.

      Don’t hesitate on buying this backpack.

      Fantastic, Bomber, and Beautiful

      This is an amazing backpack from a great guy! I was in Portland for a few days and stopped by Luke's workshop to get some advice on materials and try various sizes. After some good feedback from Luke, I chose the Spectra Drop Liner. I had the standard fastener switched out for a Fidlock and a week later, I had the backpack in hand.

      The pack is absolutely bomber. The craftsmanship is top-notch, and the materials make it both beautiful and almost indestructible. I was looking for a comfortable, minimal daypack for alpine and desert hiking and the size small pack is perfect. It also doubles as a business bag, easily holding my 15 inch macbook pro and other gear.
      I spent a long time looking for the right bag and I'm thrilled to have found such an amazing pack. Thanks much Luke!

      2nd Truce bag

      I have a medium kevlar dropliner from 2 years ago and purchased a small spectra since I often didn't need a larger bag. Looks fantastic, and the design has improved over time. For example, before the top pocket zipper would sometimes snag on the lining, this is fixed now with some stiffening material near the zipper similar to what you would find in a nice sleeping bag.

      These bags carry great without needing a frame. It isn't super clear from the sample pics but there are two hanging internal pockets which are pretty big to help organize things as well as the other two outer pockets. Furthermore, you can actually stuff more stuff if you need to between the dropliner and outer bag. I have found this useful on some occasions where I want to keep some wet stuff separated.

      The other thing I appreciate is that the material that contacts your skin or clothes under the straps and lower back is stretchy and non-abrasive. It doesn't wear out the dwr coating on jacket shoulders quickly or cause chafing issues like some mesh stuff does, and also doesn't snag like mesh either.

      Some if the best packs you can get!