What do you recommend for layering under the jacket and pants (specifically in Arizona)? It's my first time snowboarding and I don't have a lot of money to spend on gear (already bought pants, jacket and boots). Can I wear an Under Armour short-sleeved, crew neck shirt with a long-sleeved, cotton crew neck shirt over it, and a fleece jacket over it, and my 10,000mm jacket over that? Is that too much? What brand would you recommend for undergarments and socks, or what characteristics should I look for in those?