Mountaintop 70L Internal Frame Hiking Backpack vs Mountaintop 40L Hiking Backpack

The main difference between the Mountaintop 70L Internal Frame Hiking Backpack and the Mountaintop 40L Hiking Backpack is that the 70L Internal Frame Hiking Backpack has Internal / External Frame (Dual aluminum internal frame) while the 40L Hiking Backpack does not.

Mountaintop 70L Internal Frame Hiking Backpack Front View
Mountaintop 40L Hiking Backpack FRont View
Specs Brand Mountaintop Mountaintop
Name 70L Internal Frame Hiking Backpack 40L Hiking Backpack
Category Hiking Hiking
Sub Category Backpacking Outdoor
Capacity (L) 70L 40L
Dimensions (in) 29.9 x 13 x 10.2 20.1 x 13.8 x 6.3
Weight (lb) 2.0 2.1
Fabric Nylon Polyester
Color 10+ colors and patterns 20+ colors and patterns
Warranty Mountaintop Warranty Mountaintop Warranty
Release Date May 31, 2018 August 1, 2016
Rating 4.5 4.6
Price Under $100 Under $50
General Features Shoulder Straps S-shaped padded shoulder straps S-curve sponge padded shoulder strap
Sternum / Chest Straps Sternum strap with whistle buckle Elastic chest strap
Hip Belt / Waist Strap Padded hip belt with pockets Adjustable waist belt
Water Proof / Water Resistant Water resistant material Water resistant material
Zippers YKK zippers YKK zippers
Main Compartment Access Top loading access Normal zipped access
External Pockets 1 zipped front pocket, bottom compartment, and 2 side pockets Zipped top, middle and bottom pockets plus two side pockets
Internal Compartments Spacious main compartment with pockets
Side Pockets Side pockets can fit water bottle Side pockets can fit water bottle or umbrella
Water Bottle Yes Yes
Handles Top grab handle Top grab handle
Business & School Features Laptop Sleeve Laptop sleeve Laptop pocket fits up to 17"
Tablet Sleeve Separate tablet pocket
Organizer Pocket Front utility pocket
Travel Features Carry-on Size Compliant 40.2 linear inches carry on size compliant
Compression Straps External compression straps External compression straps
Hiking / Backpacking Features Back Panel Breathable padded back panel Breathable padded back panel
Rain Cover Rain cover included Rain cover included
Internal / External Frame Dual aluminum internal frame
Ergonomic Ergonomic design
Ventilated Back Air diversion back system
Adjustable Length Torso 8 level height adjuster
Top / Floating Lid Yes
Trekking Pole Holders Yes Hiking pole attachment
Gym / Sports Features Shoe Compartment Bottom compartment for shoes
Hydration Features Bladder Size Holds 3L water bladder
Hydration Compatible Yes

You're currently comparing the 70L Internal Frame Hiking Backpack by Mountaintop against the 40L Hiking Backpack by Mountaintop .


Mountaintop 's 70L Internal Frame Hiking Backpack is a Hiking backpack with Backpacking features while Mountaintop 's 40L Hiking Backpack is a Hiking backpack with Outdoor features.

The Mountaintop 70L Internal Frame Hiking Backpack has a capacity of 70L (liters), weighs 2.0 pounds and it's dimensions in inches are 29.9 x 13 x 10.2. It's made of Nylon and is available in 10+ colors and patterns in comparison the Mountaintop 40L Hiking Backpack's capacity is 40L with a size of 20.1 x 13.8 x 6.3 inches. Constructed from Polyester it weighs 2.1 pounds and is available in 20+ colors and patterns.