the MH Mesa is listed as for hiking/backpacking so i haven't found the velcro pockets a problem with losing gear...if you're bouldering/climbing or doing cartwheels than maybe the zipper pocketed Matterhorn is a better choice..

The Mesa pants have velcro closure side pockets that are worthless. The Matterhorn pants have a zip pocket which is better. I wore these Mesa pants and on my first hike with them I lost my camera out of one pocket and my cell phone out of the other. Pay the extra money for the zipper pockets because it will save you money by not losing your valuable gear. I have read here about others who have had a similar experience.

The Matterhorn Pant has a boot top zip so that you can take the lower pant leg off without taking your boots off. These do not. Also, the fabric is slightly burlier on the Matterhorn as well. These are a little lighter.. perhaps better for warmer weather. Hope this info helps!