Design
The Dell Latitude E7250 has a subtle, clean aesthetic with a magnesium-alloy chassis and lid that scream "utilitarian." The woven carbon-fiber lid looks classy and professional when closed. When you open it, you're presented with a 12.5-inch 1920 x 1080-pixel touch screen and a backlit keyboard with a comfortable, soft-touch palm rest.
Durability and Security
The E7250 won't have any trouble withstanding your commute. Dell claims that its Latitude 12 7000 series laptops stand up to MIL-STD 810G testing, a U.S. military testing standard for environmental stresses and equipment durability against drops and impact (4 inches or less).
The magnesium-alloy chassis felt strong in my hands. I wouldn't want to drop it on purpose, but I didn't worry about it being bumped around in my bag on the subway while I brought it to and from the office. The touch screen features Corning Gorilla Glass, so it should be able to withstand cracking if you drop your briefcase on the ground. Additionally, the keyboard is spill-resistant (up to 6 ounces of liquid), so an errant glass of water or Diet Coke won't disrupt your workday.