TheLowepro Flipside 500AW is a mid-sized backpack with a secure equipment opening that faces your back, so it can’t be opened when you’re wearing it. Rugged and well made, with a built-in waterproof cover for harsh weather. In good cosmetic condition, with some wear from use, a few marks on the interior materials from stickers (since removed). Functional condition is excellent. Interior dimensions are approximately 18x30x44cm.