The GORUCK Ruck Plate Carrier Fitness Bag is an efficient and safe way to add weight to your workouts. You wear this fitness bag high and tight on your back so your chest remains open. As a result, you won’t struggle to breathe and your posture won’t be affected like it is with weighted vests. Instead, your chest remains open to make breathing easy. Place your preferred weighted rack—up to a maximum of 30 pounds—inside to make your workouts more..