The Fast Pack was designed with X-Ball specifically in mind, not that you can't wear it during other types of play of course...

Features:

• Quick load elastic straps and hideaway pod restraints
• A rear neo-stretch pod cover to protect your pods
• So slim and lightweight that you won't even realize that you're wearing a pack
• Collapsible design as you pull out and use tubes, the harness actually shrinks to your profile
• Easy load micro injected pull tabs
• Patent pending easy to self load hinge design
• Snut form fitting design allows for unhindered mobility
• No slip rubber lumbar pad to lock this pack in place
• Breathable air mesh construction
• Central reinforcing support bars