Gregory Mountain Men's Optic 55 Ultralight Backpack vs Gregory Mountain Targhee 45 Backpack

The main difference between the Gregory Mountain Men's Optic 55 Ultralight Backpack and the Gregory Mountain Targhee 45 Backpack is that the Men's Optic 55 Ultralight Backpack has Side Pockets (Side pockets can hold water bottle) while the Targhee 45 Backpack does not.

Gregory Mountain Products Men's Optic 55 Ultralight Backpack Front View
Gregory Mountain Targhee 45 Backpack
Specs Brand Gregory Mountain Gregory Mountain
Name Men's Optic 55 Ultralight Backpack Targhee 45 Backpack
Category Mens Sports
Sub Category Backpacking Ski
Capacity (L) 55L 45L
Dimensions (in) 23.5 x 12.6 x 4.2 30.5 x 11.5 x 11.5
Weight (lb) 2.4 3.7
Fabric Nylon 1000D Cordura Diagonal Edge Guard
Color 2 colors and patterns 2 colors and patterns
Warranty The Gregory Limited Lifetime Warranty The Gregory Limited Lifetime Warranty
Release Date November 9, 2017 July 10, 2019
Rating 4.1 4.1
Price Under $225 Under $225
General Features Shoulder Straps Padded shoulder straps Padded shoulder straps with insulated hose sleeve
Sternum / Chest Straps Sternum and chest strap Sternum strap with integrated safety whistle
Hip Belt / Waist Strap 3D comfort cradle hipbelt Padded hipbelt with zippered pockets and gear loop
Zippers ComfortGrip custom molded loop zipper pullers Reflective webbing pullers
Main Compartment Access U-zip main opening or full body front access Full U-zip back access
External Pockets 3 external pockets including weather shield hip belt pocket Floating top pocket, and 2 zipped front pockets
Internal Compartments Internal hydration sleeve with hose routing loops, universal reservoir hanger, and hydration port
Side Pockets Side pockets can hold water bottle
Water Bottle Yes
Handles Top grab handle Top grab handle
Loops and Attachments Adjustable attachment loop and upper shock lock Front straps with aluminum hooks, universal ice tool attachments, deployable helmet carry
Business & School Features Organizer Pocket Front zippered pocket with organizer
Travel Features Compression Straps External compression straps External compression straps with cam locking buckles
Rear Loading Straps Yes Yes
Base / Bottom Dual layered bottom panel
Hiking / Backpacking Features Back Panel Ventilated back panel Snow shedding back panel
Rain Cover Yes
Internal / External Frame Aluminum internal frame Internal frame
Ventilated Back Yes
Adjustable Length Torso 18-20in torso length
Hip Belt Pockets Yes Yes
Top / Floating Lid Yes Yes
Hydration Features Hydration Compatible Yes Yes

You're currently comparing the Men's Optic 55 Ultralight Backpack by Gregory Mountain against the Targhee 45 Backpack by Gregory Mountain .


Gregory Mountain's Men's Optic 55 Ultralight Backpack is a Mens backpack with Backpacking features while Gregory Mountain 's Targhee 45 Backpack is a Sports backpack with Ski features.

The Gregory Mountain Men's Optic 55 Ultralight Backpack has a capacity of 55L (liters), weighs 2.4 pounds and it's dimensions in inches are 23.5 x 12.6 x 4.2 . It's made of Nylon and is available in 2 colors and patterns in comparison the Gregory Mountain Targhee 45 Backpack's capacity is 45L with a size of 30.5 x 11.5 x 11.5 inches. Constructed from 1000D Cordura Diagonal Edge Guard it weighs 3.7 pounds and is available in 2 colors and patterns.