A Review of the Gregory Optic 48 Backpack. 

The Optic line of backpacks is aimed at weight conscious and ultralight backpackers. There is a larger Gregory Optic 58 for those with additional space needs as well as a women’s version called the Gregory Octal 45 and Octal 55. All of these packs are very similar, so this review should hopefully be applicable to hikers looking at any of these backpacks.

You can check out my full 7.5 lb Summer Ultralight Backpacking Gear List using the Optic 48 here: Sintax77’s Summer Ultralight Backpacking Gear List 2018

You can see the Optic 48 in action on my ‘Hiking the Standing Indian Loop – 3 Day Hammock Camping‘ video where I take it out for a 3 day, 2 night backpacking trip in the Nantahala National Forest.

Gregory Optic 48 Specs, as per the manufacturer

• Gear Capacity (L)
  SM: 45
  MD: 48
  LG: 51
• Gear Capacity (cu. in.)
  SM: 2746
  MD: 2929
  LG: 3112
• Product Dimension h x w x d
  SM: 26 x 12.5 x 10.5
  MD: 28 x 12.5 x 11.5
  LG: 30 x 12.5 x 12
• Weight (lbs)
  SM: 2.39
  MD: 2.47
  LG: 2.62
• Rain Cover Weight (lbs)
  SM: .21
  MD: .21
  LG: .21
• Stripped Weight (lbs)
  SM: 2.28
  MD: 2.37
  LG: 2.51
• Material(s)
  100% Nylon

*Optic 48 pack furnished by Gregory for Trial & Evaluation. Opinions expressed are my own.