I actually have the Icon Field Armor Vest, it's comfortable and offers a snit load of added protection. I wear it under my Icon Tarmac Jacket. I know a guy that has a JR Speedmaster jacket and wears the Field Armor Vest under it also for the added back/spine protection. They are comfortable to me, even gives you added shoulder protection and a protective plate in the front on your chest. I haven't tried their leg and arm protection, I think if anything I'll try the legs cause your jacket usually has enough protection in the sleeves. I'll let you know how those work out. Oh yeah, and the vest is kinda inexpensive, only cost me 100bucks.