The Zpacks Arc Haul Ultra backpack has been reviewed and tested on the Arizona Trail. Some outlets have compared it to other backpacks, including the Durston Kakwa, while others have included it in lists of the best ultralight backpacks of 2026. The backpack's performance and weight are being evaluated, with one report mentioning a backpack that weighs just 15 ounces, though it is unclear if this refers to the Zpacks Arc Haul Ultra.