The main difference between the UltrAspire Alpha 4.0 Vest and the Nathan Intensity Womens Hydration Backpack is that the Alpha 4.0 Vest has Zippers (Large zipper pulls) while the Intensity Womens Hydration Backpack does not.
Specs | Brand | UltrAspire | Nathan |
Name | Alpha 4.0 Vest | Intensity Womens Hydration Backpack | |
Category | Sports | Sports | |
Sub Category | Running | Running | |
Capacity (L) | 6L | 4.4L | |
Dimensions (in) | 31-36 | 13 x 7 x 3 | |
Weight (lb) | 0.6 | 0.9 | |
Fabric | Double layered 30D Fabric | Nylon / Polyester | |
Color | Emerald Blue Lime | Very Berry | |
Warranty | UltrAspire Warranty/Return Policy | ||
Release Date | July 5, 2019 | March 11, 2021 | |
Rating | 4.5 | 4.6 | |
Price | Under $125 | Under $100 | |
General Features | Shoulder Straps | Angled and curved shoulder straps | Breathable wall mesh shoulder straps |
Sternum / Chest Straps | Adjustable chest straps | ||
Zippers | Large zipper pulls | ||
Main Compartment Access | Normal zipped access | ||
External Pockets | Rapid access pockets, passage pocket and drawstring pocket | Front zipped phone pocket and bottle pocket | |
Internal Compartments | Internal rear stash pocket and key ring clip | ||
Water Bottle | Yes | Yes | |
Handles | Top grab handle | Top grab handle | |
Loops and Attachments | Patented 3-way propulsion harness™ | ||
Hiking / Backpacking Features | Ergonomic | ErgoFit | |
Ventilated Back | Ultracool system | ||
Trekking Pole Holders | Trekking pole attachments | ||
Reflective Safety Strips | Reflective trims | ||
Hydration Features | Bladder Size | Holds 2L reservoir | Includes 2L water bladder with bite valve |
Hydration Compatible | Yes | Yes | |
Other Features | Other Features | Bounce-free ride for your run or hike, designed specifically to fit the female form |
UltrAspire 's Alpha 4.0 Vest is a Sports backpack with Running features while Nathan 's Intensity Womens Hydration Backpack is a Sports backpack with Running features.
The UltrAspire Alpha 4.0 Vest has a capacity of 6L (liters), weighs 0.6 pounds and it's dimensions in inches are 31-36. It's made of Double layered 30D Fabric and is available in Emerald Blue Lime in comparison the Nathan Intensity Womens Hydration Backpack's capacity is 4.4L with a size of 13 x 7 x 3 inches. Constructed from Nylon / Polyester it weighs 0.9 pounds and is available in Very Berry.
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