The Animal Protective Association of Missouri is a nonprofit organization dedicated to bringing people and pets together, according to its site. The group offers a shelter service and a vet clinic, it adopts out pets, and provides lost-and-found assistance along with education and outreach. All good things, to be sure.

Why are we telling you this? Because you’re going to buy an ugly T-shirt to support the group. An ugly pair of underpants is going in your basket as well, because you’ll want them to go with the ugly shirt when you model the ugliness to your significant other — and maybe your family? — on Christmas morn.

Take a look:

OK, you got us: Those aren’t ugly at all. Those are amazing. Those shirts, which are being sold under the fundraising promotion “Ugly Holiday Sweater Tease” by Switch, belong on your bony frame starting now — you’re benefiting the APA of Missouri, remember. And you haven’t even seen the underpants yet. Here are the underpants:

Svelte, huh? Here’s the shirt that goes with those underpants:

Here are some people wearing the shirt with a dog:

In the past two years, Switch’s Ugly Holiday Sweater campaign has raised more than $20,000 for the APA of Missouri, and this year it hopes to considerably add to that number because of the addition of those underpants. You need those underpants. Men aren’t left out — they get boxers. Here are the boxers:

If that fox design is starting to ring a bell, that’s because it’s a tongue-in-cheek reference to Ylvis’ Internet video sensation “What Does the Fox Say?” The other designs include include “Holiday Blues,” an ode to St. Louis Blues Hockey, and “Santa Surveillance.” (Maybe an ode to the NSA?)

Here’s some more underpants:

This one has to do with hockey:

All profits benefit the Animal Protective Association of Missouri. Give the boxers to your dad. He’ll thank you later.

Visit the “Ugly Holiday Sweater Tease” by Switch website