Burton Annex 2.0 28L Backpack features timeless style for mountain goats and urban dwellers alike. Old-school on the outside and tech-ready on the inside. The Burton Annex 2.0 28L Backpack brings old-school rucksack charm and tech-ready organization to your daily commute and weekend escapades. Access the laptop sleeve from inside or outside the pack. Strap on a jacket or yoga mat for quick access. And keep all your everyday carry stuff easy to find in one of the zip pockets.