Styling produt on wet hair; dry; curling iron; dew -rag to cover.
(Windsor, Ontario, Canada)
-After washing your hair make sure you use a styling product (gel, mousse). Dry your hair as usual. A few curls with the curling iron and DO NOT comb out curls. Leave them in 'sausages' on your head. Gently pull on a dew-rag and adjust your sausages so they aren't all skewed underneath it. When you take off your helmet for the final time, remove dew-rag and brush, comb or pick it out. It should be nice and full. It worked great for me!
-I also carry a small, travel-size spray bottle of water to lightly dampen my flattened hair to coax it up a little. That works too.
-Or you can get a sticker on your helmet that says "Hairdo by Helmet".