What to Wear Skiing and Snowboarding?

Sea to Summit always recommends warm and waterproof gear especially if its cold conditions expected. (hats, gloves, ski pants, jackets, etc) Ski resorts only rent skis, boots and snowboards…. There are no clothes to rent at the ski resort and prices to buy not cheap!  Portland would be better if you need to purchase warm clothes (Next Adventure, Us Outdoor Store, Columbia Sports Wear Outlet)