In warm weather - jeans,t shirt with denim vest, gloves, half helmet,leather boots.
In cool weather - leather chaps, leather jacket, leather gloves,half helmet, leather boots.
and Yes I have been down twice hard (70+ mph)

got the scars to prove it- 36 stitches, severed tendon and torn ligament in right leg + the road rash

. denim actually holds up pretty well

.
The main thing to remember is YOU BLEED THE BIKE DON'T! if you are going down get as far away from the bike as possible. JMO