I'm 6' tall and it's a struggle to find pants long enough in the leg and the rise. These fit amazingly well in the Large Long (I'm about an 8 in regular US pants) and the articulated knees make an enormous difference in how well they stay put when active when you are tall. Wish more pants had these! They are good xc skiing down to about 15F on their own and with long underwear I will wear them colder than that, although I also have the sport hill 3SP pants for really cold/windy weather as these provide no wind protection to your rear and sometimes you need it. In addition to skiing, I wear them hiking in cooler 40s/50s temps, under my waders fly fishing in cold weather and I usually wear them camping in the fall and spring. I really like hiking in them as they are quiet unlike most softshell pants. Overall, super versatile and comfy pant that washes well and can be used nearly year round in northern areas.