Here's what other sites are saying:
The Men's Lux Pants from La Sportiva are designed for lightweight, fast excursions into the mountains and beyond. Ripstop nylon outer fabric is given a DWR treatment to help shed moisture and prevent any wind from getting in. With a comfort fit and articulated knees, these pants are perfect for any sort of aerobic activity you find yourself participating in. Full-length side zippers allow you to take these pants on and off easily and can be opened for ventilation when you find yourself heating up. Scuff guards keep the inside of the pants from getting shredded by ski edges or crampons, and, when not in use, the pant can be stored in its own rear pocket.
The La Sportiva Lux Pant is a versatile layering piece. The fill side zip on each leg will let you take these pants on and of without removing your boots. Even with the full zip they are extremely lightweight and stowable. The articulated knees will give you full range of motion and the back zip pocket will keep your valuables safe. The low profile waistband accommodates layering without bulk.
Sierra Designs Microlight Pant
$18 - $36
Sierra Designs Microlight 2 Pant
Montane Featherlite Trail Pant
EMS Northshield Wind Pants
MontBell U.L. Wind Pants
Sierra Designs Cloud Pant
MontBell Dynamo Wind Pant
Bergans Vemork Pant