I wonder how a $50 Skate helmet ranks among Sprint helmets in aero tests. I wish someone would put them in a wind tunnel.

I have a Casco Warp III ($300 USD) as well as a Pro-Tec Classic ($50 USD) skateboarding helmet. The profile is similar although the skate helmet didn't have an integrated visor.

One day I decided to weight the two. You won't believe what I discovered...they weighed the same. What's more is that the Casco (as with most bicycle helmets) is only rated to survive 1 crash. Skate helmets are rated to survive at least 3 crashes. The skate helmet has better ventilation

A buddy at DLV found a visor at a Triathlon shop and affixed it to his Nutcase skate helmet. It worked. Or you can simply wear your cycling glasses.

But, are they legal according to USA Cycling rules? YES. Many "skate" helmets meet or exceed CPSC Bike helmet standards and have "bike" certificates...which is all you need for USA Cycling approval. Not sure about UCI.

A skateboarding helmet is a poor man's (or smart man's) aero helmet. Plus you can get them in darn near any city in the world.