Here's what other sites are saying:
Houdini designed its Men's Alpha Long John Bottom to do more than just warm your lower body at the ski resort. Its Eco Circle Alpha Base Fabric wicks moisture away from your body to keep you dry when you work up a sweat, and it dries quickly. Econ Stretch gives the knees a 4-way stretch for more mobility where you need it, and it provides excellent breathability, long-lasting durability, and extra warmth where it counts. Houdini then finished the fabrics with Polygiene's antimicrobial treatment to resist foul-smelling odors when it isn't convenient to do laundry between each ride. Alpha-seams reduce bulk and maximize comfort, an extended height at the waist offers more coverage, and double folded cuffs ensure optimum comfort even with a pair of ski boots over them.
- Backcountry.com refers to the men's version