The Ultra Pants are designed with top quality fabrics that maximise both waterproof protection and breathability. Minimal features are included to keep weight low but they are still perfectly suited to running.
Ultimate Direction says:
You don't have to choose between windproof and waterproof - with the Ultra you get both.
"It’s easy to justify the 3.5 ounces for this wind- and waterproof nylon shell pant that packs down inside its own pocket to the size of an apple." –Backpacker magazine
Ultimate Direction's Ultra Pant V2 are excellent running pants. Using a fabric that has a HH of 30,000 and MVTR of 30,000 these pants certainly provide loads of protection and impressive breathability. The low weight and low bulk is ideal for them being stored in your pack ready for emergencies.
Although these pants are designed with minimal features there are still enough to show that they are perfectly suited to running. The knees are well articulated making them particularly comfortable when running. Water resistant zips up the lower legs make getting them on in a hurry over chunky trail shoes much easier which is great when conditions change quickly. There are no real pockets, simply one small internal pocket that doubles as the stuff sack but that is all most runners need.