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Gregory Mountain Products Men's Optic 48 Ultralight Backpack

4.2 4.2 out of 5 stars 43 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
  • On-the-go bottle Stow - Trail accessable stretch mesh water bottle pocket
  • Sunglasses Quickstow System - Quickstow system on shoulder harness for a secure, scratch free way to store your sunglasses
  • Ultralight weather Flap - Swap out the Top zippered pocket and go even lighter with the included ultralight weather flap
  • INCLUDED RAIN COVER: Custom fitted rain cover stows in the top pocket for quick access in unexpected showers.
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From the manufacturer


AeroSpan Suspension

AeroSpan is the ultra-light evolution of our groundbreaking VaporSpan suspension, delivering the same combination of 360-degree moisture-wicking ventilation and tensioned perimeter frame load management while paying obsessive attention to weight reduction. Using body-mapping techniques to target friction and impact points allows us to eliminate hotspots without excess padding. FocusForm shoulder harness and hipbelts and LifeSpan foam provides lightweight comfort that outlasts other weight-conscious cushioning materials.

  • Ventilated, dual-density FocusForm shoulder harness and extra supportive hip belts with targeted comfort zones
  • Leaf-Spring lumbar pad for comfortable, energy-saving load transfer
  • Ultra-light 7001 aluminum perimeter frame with Anti-barreling support

Optic 48

Weight: 2.39 lbs. | Body Dimensions: 26" x 12.5" x 10.5"

Achieving fluid motion takes more than counting ounces. The ultralight Optic 48 combines weight-saving design with exceptional fit and load management to give you a low base pack weight along with mileage-crushing efficiency. Comfortable carry and thoughtful trail features keep your head in the game so you stay ahead of your thru-hiking itinerary.

  • Custom fitted raincover included (stows in top pocket)
  • Removable top lid with ultra-light weather flap included (stows in top pocket)
  • Sunglass QuickStow system on shoulder harness for quick, secure and scratch-free access to your shades without taking the pack off
  • Quick access on-the-go water bottle stow access on both the right and left side
  • Oversized, durable front stretch mesh pocket for quick access organization
  • Dual zippered hip belt pockets provide secure, easy to access storage
  • Internal hydration sleeve and port
  • Dual adjustable attachment loops and upper shock locks for trekking poles or ice axes
  • Ultra-light V-Compression system on side and bottom of bag
  • Lower side compression pass-through on side pocket for over/under option
  • Gear attachment points on top pocket and main body
  • AeroSpan suspension with EVAP moisture wicking shallow-depth ventilated backpanel

Pack Details

Removable Top Lid

Removable top zippered pocket to shed ounces and swap-in included ultra-light weather flap to stay protected (stows in top pocket).

Custom Fitted Raincover

Included custom fitted raincover stows in the top pocket for quick access in unexpected showers.

Sunglass QuickStow

Sunglass QuickStow system on shoulder harness for quick, secure and scratch-free access to your shades without taking the pack off.

Front Stretch Mesh Pocket

Oversized, durable front stretch mesh pocket for quick access organization.

Quick Access Water Bottle Stow

Quick access on-the-go water bottle stow access on both the right and left sides.

Internal Hydration Sleeve and Port

Product Description

Traveling light is more than just counting ounces. The exceptional fit and load management of the AeroSpan suspension on the Optic 48 give you a low base pack weight with the mileage crushing efficiency.

Product information

Technical Details

Additional Information

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Gregory Mountain Products Men's Optic 48 Ultralight Backpack

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Customer reviews

4.2 out of 5 stars
4.2 out of 5
43 global ratings
after 4 times of using...
1 Star
after 4 times of using...
the left Load Adjuster Strap cracked during my 4th hike.I contacted Gregory Company ( Jul17,2022) and I will wait what they can do for me.Otherwise this pac is great.
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Top reviews from the United States

Piotr Szarecki
5.0 out of 5 stars Amazing Backpack
Reviewed in the United States on September 18, 2020
Verified Purchase
This is an amazing backpack if you want to keep your weight down while keeping some padding and structure in the pack. While an Osprey Levity is lighter, the Optic provides a lot better support and padding.
I took the backpack for few day hikes and a 7 day through hike. The backpack is great under 30lbs. Around 35 it starts reaching it's limit. At it's heaviest the backpack weighed 40lbs and it stopped being as comfortable but that is understandable because the backpack is not meant for that amount of weight. The wrist belt pockets are large enough to store my Galaxy S9+ I could fit 2 smart water bottles on each side, could fit 3 if I tried. The backpack is not the most durable in the world but as long as you do not throw it around it shouldn't cause any issues.
4 people found this helpful
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Amazon Customer
5.0 out of 5 stars Very light and very very comfortable.
Reviewed in the United States on December 27, 2020
Verified Purchase
I’m really liking this backpack. It’s very very comfortable and very light. I’ve taken it out on a few weekend trips with 25lbs in it and it carried well. It’s hard to believe the price on this thing. It’s a steal at $150 IMO
3 people found this helpful
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B. Kilkus
5.0 out of 5 stars Comfortable and lightweight
Reviewed in the United States on July 18, 2019
Verified Purchase
This is a really comfortable backpack. Took it in a 3 day trip and it held up great. Not too many pockets or bells and whistles but just what I needed. Hopefully continues to withstand the elements.
7 people found this helpful
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WHT
4.0 out of 5 stars Good quality over all, lightweight backpack. Some straps and buckles are too small.
Reviewed in the United States on March 25, 2022
Verified Purchase
The backpack is roomy, but only rated for up to thirty pounds. Need to be considerate of weight and only carry essentials. Belt pockets are roomy. Would prefer a bottom access to main compartment. Not much lighter than smaller 45l backpacks which are rated for higher capacity so I was disappointed in the smaller components that aren't as sturdy.
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Marianthi
1.0 out of 5 stars No adjustment mechanism
Reviewed in the United States on February 25, 2022
Verified Purchase
I bought this in a small as that is the size they recommended, even measured myself. I went to REI to have them help me with placement only to find out there’s no way to adjust this stupid backpack and it does not fit me, too big. But I didn’t find that out until it was too late to return and now I’m stuck with this stupid thing, and it wasn’t exactly cheap. Seriously, go somewhere else for your Gregory purchases so you can return it if it doesn’t fit, this is BS.
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Bobby
2.0 out of 5 stars Same problem from other customers
Reviewed in the United States on November 7, 2022
I have used this bag for 5 times only but this adjustment buckle has already broken. Even tho Gregory has provided an international warranty, the official store in my country refused to fix it for me as the bag was purchased from Amazon.
Customer image
Bobby
2.0 out of 5 stars Same problem from other customers
Reviewed in the United States on November 7, 2022
I have used this bag for 5 times only but this adjustment buckle has already broken. Even tho Gregory has provided an international warranty, the official store in my country refused to fix it for me as the bag was purchased from Amazon.
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Michael W.
1.0 out of 5 stars after 4 times of using...
Reviewed in the United States on July 17, 2022
Verified Purchase
the left Load Adjuster Strap cracked during my 4th hike.
I contacted Gregory Company ( Jul17,2022) and I will wait what they can do for me.
Otherwise this pac is great.
Customer image
Michael W.
1.0 out of 5 stars after 4 times of using...
Reviewed in the United States on July 17, 2022
the left Load Adjuster Strap cracked during my 4th hike.
I contacted Gregory Company ( Jul17,2022) and I will wait what they can do for me.
Otherwise this pac is great.
Images in this review
Customer image Customer image
Customer imageCustomer image
One person found this helpful
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Top reviews from other countries

Aaron
5.0 out of 5 stars Good
Reviewed in Canada on April 24, 2022
Verified Purchase
Just started backpacking this is my first pack . No complaints and everything seems well built. I order 2 more for my wife and son
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Amazon Customer
5.0 out of 5 stars This is rucksack is amazing
Reviewed in the United Kingdom on April 6, 2022
Verified Purchase
I have recently use this rucksack on the coast to coast and it easily carried all my food and equipment with no issues. If your looking for a light weight very comfortable rucksack then this is the one.
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Nico Etoc
5.0 out of 5 stars Great backpack
Reviewed in Australia on June 1, 2020
Verified Purchase
Great backpack! Bought this for light overnight and quality is amazing! Support is really good (weight well transfered), material seems too notch, clever design. I think that Gregory has produced a big rival to usual ultralight players. Highly recommended!
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Rod Inglis
1.0 out of 5 stars Rubbish
Reviewed in Australia on October 5, 2022
Verified Purchase
Have had this pack for less than a year. The first time I used it the interior water resistant coating started rubbing off in spots. Last week both the load lifters broke. Upon closer inspection I’ve found stretching in the stitching where the shoulder straps meet the pack, stretching in stitching and tears in the material where the side hip belt adjusters meet the pack, stretching in the stitching and tears in the material where the hip belt meets the pack. Pack has never been overloaded, used mainly as a day pack and a couple of overnight camps, max load 14kg for a longer hike. Complete waste of money. Not fit for purpose. Have read other people having the same problem. I wouldn’t even use a replacement if I was offered one - can’t be trusted.
Customer image
Rod Inglis
1.0 out of 5 stars Rubbish
Reviewed in Australia on October 5, 2022
Have had this pack for less than a year. The first time I used it the interior water resistant coating started rubbing off in spots. Last week both the load lifters broke. Upon closer inspection I’ve found stretching in the stitching where the shoulder straps meet the pack, stretching in stitching and tears in the material where the side hip belt adjusters meet the pack, stretching in the stitching and tears in the material where the hip belt meets the pack. Pack has never been overloaded, used mainly as a day pack and a couple of overnight camps, max load 14kg for a longer hike. Complete waste of money. Not fit for purpose. Have read other people having the same problem. I wouldn’t even use a replacement if I was offered one - can’t be trusted.
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