Play Outside Challenge Day 12: #BeKindToMotherEarth

Today's Instagram #PlayOutside challenge is pretty amazing—we've teamed up with Lauren and Molly of Kind Campaign to send our winner a beautiful T-shirt from their new collaboration with Element Eden. If you aren't familiar with Kind Campaign, go check it out. It's a documentary, school program and world-wide movement to end girl-on-girl bullying, and was launched by Lauren and Molly back when they were in college.

The message is simple: think before you speak, and strive to be kind. That goes for Mother Earth, too. Pack up your trash, stay on the trails, take care of our planet—it's the only one we've got!

To enter to win, just upload a photo of what being kind to Mother Earth means to you, tagging @dirtbagdarling @kindcampaign and using the hashtag #playoutside. Our favorite image wins this T-shirt! Good luck.

Win This: Custom Dirtbag Darling X Sandalista Flip Flops

Photo on flip flops by B. Scherzberg

Up until the time I was 18 and discovered other warm-weather footwear options, I would wear a pair of flip flops every single day. Every. Single. Day. In fact, my big toe is actually really far away from my other toes because of it. That's probably a little TMI though.

Still, I learned to appreciate a quality pair of flip flops that wouldn't fall apart after a couple beach trips. That's why I'm head-over-heels for Sandalista. Sandalista let's you design your own custom pair of comfy flip flops using your own photos and images. Or you can choose from hundreds of designs from top surf artists like Drew Brophy, Jay Alders and Colleen Wilcox!

Sandalista designed Dirtbag Darling a pair of custom flip flops using one of my favorite images from a trip out West...and I'm giving it to one of you! Just tell me your favorite beach in the comments below and you're entered to win (don't forget to include your email address).

This sweepstake is now closed.