US$ 21.18
amazon jansport backpack medium Cool Backpack, with 15-inch Laptop Sleeve - Large Computer Bag Rucksack with 2 Compartments, Ergonomic Straps, Black Color:ORCHID Port Authority® BG218 - product-condition_New
Port Authority® BG218 - Access Square Backpack $22.77 - Bags
The main difference is their dimensions and carrying capacity
product-condition_New
Color:ORCHID
Besides that still a great backpack tho
US$ 21.18
US$ 29.53
US$ 23.11