The 3v Surge Redline Hydration Backpack gives you a high quality 20L backpack with military level construction, loads of zip pockets and features and a free 2L hydration bladder for a price that should be twice as much. If ultralight isn’t on your tick list this bombproof bag is the last 20L bag you’ll ever need to buy with enough features for the trail and enough space for a laptop for weekdays too. Continue reading 3v Gear Surge Redline Hydration Backpack Review