My friends laugh when I wear these bibs in the warm spring skiing conditions. But I fall a lot I tell them, and these bibs are tough, and offer protection. They vent on the sides, so I dont get too warm. Plus they are Gore-Tex Pro shell, so they breathe real well. I often ski with just shorts under them, but put on base layer in the colder weather. Im a Gore-Tex Mountain tech and received these bibs to test. Ive had them for about two years, and take them on every skiing trip, and they are going strong. The front pockets are conveniently located above the hip strap on my backpack, so I put my GPS and phone in there, for easy access. The sides vent all the way down, as well as up. But the best is that they keep me dry in the rainy conditions we often have in Oregon. I never ski without these bibs.