Do you like this underwear?

Photos: ES Collection via Beautiful

ES Collection has come out with a brand new line of underwear for Fall 2009/Winter 2010, and the accompanying ad campaign is after the jump. It will make you really appreciate the usefulness of underwear!

Here's one of the shots that should remind you of how important it is to wear underwear while skiing.

Again, wearing underwear in the mountains is crucial if you want to stay warm and look fashionable while riding a snow mobile.

Underwear comes in many different prints and styles, just make sure it matches your boots, which clearly isn't happening here.

Watch out! This pair of underwear was too big, or the waistband was not strong enough, and so they fell off. This kind of thing happens to everyone.

Here are not one, not two, but three pairs of underwear being shipped to the factory on top of the mountain, for packaging. Notice that ES Collection underwear comes in a variety of colors.

Safety first! When climbing a tree, always remember to wear brightly colored underwear so that people can you see when you fall to your death.

See more underwear and order some for your next trip to the slopes by clicking here.