it has the big trouble symbol on the calf. its their park boot. It's the same boot as either the fluid 100 or 90. but it has a rubber boot board, and elastic power strap (like the booster but velcro and thicker), and i believe it has the velcro strap to hold the liner and tongue together on your shin when you are in the air.
its a solid boot. better quality than the dalbello