Just remember that you can have all four seasons in the same day out west. The key is good layers of quality materials,wool,fleece,and many of the moisture wicking stuff. I like the layers to all fit under some form of a windproof/waterproof outer layer that can be used as light rain gear or with layers can withstand a blizzard. Cotton works good in a hot antelope blind until you have to spend the night in it. There are alot of good products out there to choose from but I look at material and contruction frist then brand name but thats me.