What JustGolfBags.com says:
This is the "more mature" sibling of the Hybrid HC, a larger offering with a 9" diameter top. This version also features the nifty removable side pockets, PVC Clam shell top and nice open divider system. In addition the X offers a 5-way top, full length dividers and handy alignment connectors for ease of securing the top. At 9" this is the ultimate travel case at a very palatable price point...
Specs:
Approximate size: 53" tall x 7" top diameter
Max Club Length: 51"
Approximate weight: 12 pounds with lid, 10 without