Big Agnes Men's Prospector 50L Backpack product image
Big Agnes Men's Prospector 50L Backpack product image
Big Agnes Men's Prospector 50L Backpack product image
Big Agnes Men's Prospector 50L Backpack product image
Big Agnes Men's Prospector 50L Backpack product image

Big Agnes Men's Prospector 50L Backpack

Size: M
  • Heavy duty, lightweight fabric that protects gear while staying lightweight
  • 50L capacity
  • Injection molded frame for comfort and stability
  • 3L hydration sleeve
Delivery & Pickup Options

Ship To Me

Store Pickup

Product Information


  • Utilizes ultralight, puncture-resistant GRS certified, recycled high-tenacity Mipan® regen robic nylon material with UTS environmentally sustainable coating


  • 50 Liter capacity
  • Top opening: 17"
  • Load range: 15lbs - 40 lbs
  • Medium dimensions: 33" x 10" x 8"
  • Large dimensions: 35" x 9.5" x 8"
  • Medium weight: 3lbs 1oz
  • Large weight: 3lbs 3oz
  • Medium hip belt: 32" - 54"
  • Large hip belt: 35" - 58"
  • Medium torso length: 18" - 20"
  • Large torso length: 20" - 22"


  • Top loading main compartment with roll top closure
  • Internal 3L hydration bladder pocket and bladder hook
  • Two stretch mesh side pockets
  • Front quick-stash pocket
  • Front zip pocket with key keeper
  • Includes two color-matched 1.6L removable hip pockets and 7L trash can pack for keeping the trail cleaner than you found it


  • Injection molded frame is anatomically designed to mold to the body and features adjustability options to provide customization and ideal support on the trail
  • Comfortable contoured shoulder straps provide load transfer and additional stability throughout extensive adventures
  • Curved back panel features body mapped foam for precise fit and breathable ventilation capabilities
  • Cut-to-fit hip belt tightly wraps the hips and offers stabilizer straps to allow upper and lower sections to be adjusted to fit each unique shape
  • Shoulder straps are equipped with adjustable sternum strap and hydration hose keeper to hydrate on the go without worrying about any spills
  • Hoist compression system provides a positive load transfer by moving pack weight inward and upward, while raising the bottom pack panel up to protect the load
  • Injection molded frame sheet, cored aluminum perimeter frame, shoulder straps, and hip belt work together as a fully integrated suspension system that offers increased balance through positive load transfer
  • Full-zip back panel provides access to the pack interior
  • Discreet tube routing port and hose keeper keep hydration spout in reach for easy hydration
  • Constructed with puncture and tear-resistant material
  • Durable pack bottom is made with heavy twill fabric and maximum reinforcement
  • Exterior webbing and bungee cord loops provide the perfect place to stash trekking poles
  • Nylon taffeta lining
  • Stretchy, fine woven, anti-snag exterior pocket mesh provides comfort and keeps all items secure

  • Country of Origin : Imported
  • Brand : Big Agnes


Bag StyleBackpack
Frame TypeInternal
Gear Capacity (L)50L
Gear Capacity (cu. in.)3,051 cu. in.
WeightM: 3lbs 1oz | L: 3lbs 5oz
Fits Torso Length (in.)M: 18 - 20" | L: 20 - 22"
Fits Waist/HipsM: 32 - 54" | L: 35 - 58"
Material(s)Recycled, GRS-certified, high-tenacity nylon MIPAN® regen robic with solution dye ripstop grid
Frame MaterialCored aluminum
Pack AccessTop
Number of Exterior Pockets4
HipbeltM: 32 - 54" | L: 35 - 58"
Raincover IncludedNo
Reservoir CompatibleYes
DimensionsM: 33" x 10" x 8" | L: 35" x 9.5" x 8"
SustainabilityContains recycled materials