The other thing to keep in mind is that falling into whitewater while wearing a lifejacket hardly ever means a life-threatening event. Most rapids can be floated safely in your flotation device. If your trip is cancelled by Orion for safety reasons, your trip will be moved to a more appropriate day or river. No refunds will be given if these conditions arise. Remember . . .
Layers are preferable to bulk for trapping heat . . .
Cotton shorts to wear over your wetsuit for extra grip and a more attractive look are fine. When cotton gets wet, your body spends more energy trying to dry the cotton clothing than it does trying to keep you warm. Wear a swimsuit beneath your street clothes enroute to the river so that changing at the launch or meeting site will be hassle-free. Yes, depending on the Class of the river. Rivers are rated from mild to wild.