The Session bag is our travel bag. The Pro Race measures 7'0 (mast up to 520). NEW: improved wheel base for easy transport, fits all session bag sizes. The base is optional! Made of durable 600D polyester with 12mm high-density wall and tail padding. Adjustable shoulder strap. Roof attachment points on the side of the bag to protect the sails. New business card holder. The Wave session bag is based on gear up to 5.6 (mast up to 430). The Freeride is based on gear up to 7.0 (mast up to 490). The Race fit the entire gear larger than 7.0. The universal wheel base fits all sizes of the aero session bag and the windsurf board and session bag. Improved wheel base for easy transport. Weight: 4.9 kg