They are Tsukayu Strong bags.
You can see more about them here: http://www.tsukayu.com/Strong.htm
You can buy them here: fasteddysports He also has a quick release option that was not available when I bought mine.

SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq NEW: 19 Goldwing Tour DCT