The Aero Session bag is our compact quiver bag. More aero-dynamic shape as our session bag. Fit your complete sail quiver. The session bag wave is based on quiver till 5.6 (mast till 430). The session bag Freeride is based on quiver till 7.0 (mast till 490). The universal wheel base, fits all size of the aero session bag and the Windsurf session board and session bag. Improved wheel base for easy carrying. Base is optional!