The Eclipse GX Back Pack is amazingly diverse it’s the must-have rucksack for any paintballer. What’s different? The unique GX Back Pack ‘Xpander’ can be quickly deployed to increase its carrying capacity by an amazing 50%. Bam! Simply unzip the bottom of the bag and the Xpander section can be pulled out to increase the internal storage capacity or push your gear inside to separate it from the main compartment great for when your equipment is caked in mud!