The New Dual Aperture Bag aka “The DAB” is made out of 900D TPU (Thermoplastic Urethane). It allows you to access both ends of the rope easily and efficiently. 
-Add additional rope or pull cord, without having to pull out and re-stuff the entire rope. 
-Set up a top belay
-Plan for rescue
-Use the other end for a traverse or hand line
The DAB has three panels of removable flotation and drains exceptionally well.
It is 24”x6”x8” making it 19L. The DAB is designed to hold 70-100M of any Glacier Black 8.5mm ropes