Sea to Summit Duffle Bag vs Under Armour Project Rock Backpack

The main difference between the Sea to Summit Duffle Bag and the Under Armour Project Rock Backpack is that the Duffle Bag has Zippers (Burly double-toothed zipper) while the Project Rock Backpack does not.

Sea to Summit Duffle Bag Front View
Under Armour Project Rock Backpack Front View
Specs Brand Sea to Summit Under Armour
Name Duffle Bag Project Rock Backpack
Category Travel Laptop
Sub Category Daypack Travel
Capacity (L) 28.5L
Dimensions (in) 11.4 x 23 x 11.4 11 x 7.5 x 19
Weight (lb) 3.3 2.5
Fabric Tarpaulin Laminate, 1000D Nylon 100% Polyester
Color 3 colors and patterns Graphite/Black
Warranty Sea to Summit Lifetime Warranty Under Armour 60 Days Return Policy
Release Date October 27, 2016 ‎May 7, 2019
Rating 4.2 4.9
Price Under $125 Under $100
General Features Shoulder Straps Adjustable shoulder straps Adjustable padded HeatGear® shoulder straps
Sternum / Chest Straps Adjustable sternum strap
Water Proof / Water Resistant Waterproof material UA Storm technology water resistant finish
Zippers Burly double-toothed zipper
Main Compartment Access U-zip access with padded lid Normal zipped access
External Pockets 3 front, 1 back and 3 side pockets
Internal Compartments Large internal zipper pocket
Side Pockets Side pockets can fit water bottle and other accessories
Water Bottle No Yes
Handles Top and side handles Top grab handle
Loops and Attachments Lash points
Convertible Yes
Business & School Features Laptop Sleeve TSA friendly laptop sleeve fits up to 15"
Tablet Sleeve Soft lined padded tablet sleeve
Travel Features Carry-on Size Compliant 45.8 linear inches carry-on size compliant
Compression Straps External compression straps
Base / Bottom Tough, abrasion-resistant PU coated bottom panel

You're currently comparing the Duffle Bag by Sea to Summit against the Project Rock Backpack by Under Armour .


Sea to Summit 's Duffle Bag is a Travel backpack with Daypack features while Under Armour 's Project Rock Backpack is a Laptop backpack with Travel features.

The Sea to Summit Duffle Bag has a capacity of (liters), weighs 3.3 pounds and it's dimensions in inches are 11.4 x 23 x 11.4. It's made of Tarpaulin Laminate, 1000D Nylon and is available in 3 colors and patterns in comparison the Under Armour Project Rock Backpack's capacity is 28.5L with a size of 11 x 7.5 x 19 inches. Constructed from 100% Polyester it weighs 2.5 pounds and is available in Graphite/Black .