Mammoth 47.5L


 The Mammoth Internal Frame Pack will have you ready for adventures in the high peaks and beyond.


  • Top flap / drawstring main compartment
  • Zippered pocket on top flap
  • Two zippered side pockets
  • Padded hip belt
  • Cool mesh padded back
  • Adjustable sternum straps
  • Padded shoulder straps
  • Reinforced front carry handle
  • Two removable internal aluminum stays


  • Dimensions: 20 x 12.7 x 8.6 inches
  • Volume: 47.5 liters

Best Use: Hiking, Travel

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Shipping & Delivery
Shipping Rates
FREE Ground Shipping on all orders over $73!
Standard Shipping is $9.99

Shipping Policy
We ship to the United States only. We do not ship to US territories.
Please note that we use a variety of carriers for each of our shipping options, and will choose the most appropriate delivery method based on your order type.
Once an order has been processed, we get started and are unable to change shipping methods.
Shipping rates are applied based on the merchandise subtotal before any promotional discounts are applied.
In most cases, items will be shipped using Parcel Select services.

Estimated Order Processing Times
All orders ship within 1 to 3 business days

Customer Reviews

Based on 2 reviews

Great backpack has plenty of space and pockets good buy.

Review of Mammoth 47.5L Backpack

Inspected stitching, seams, zippers and buckles and find that everything is well made. Good amount of compartments inside and out, and I really like the fact that the tube from a hydration bladder can be extended out from either side. Having the option to have it on either right or left side is a thoughtful feature -- better than having only one option available. Detachment points on bottom of pack so another smaller bag can be attached or sleeping bag, etc. I have had several other backpacks, as well as fanny-packs, from Outdoor Products and all have lasted for years and years with proper care and cleaning (I have one backpack over 15-years old which is still in very, very good condition) -- and so I expect this backpack will last for many years as well. It is well worth purchasing. And shipping was FREE -- I received the package 5-days after placing the order. Thank you 'Outdoor Products' for continuing to make durable, well-made products such as this.