The "Neighbors" star appears in a new video for Lekker Skateboards, where he crafts a wooden skateboard from scratch for charity.
Check out the sexy video above!
Aside from taking time out of his crazy schedule to give back, the 26-year-old will be heading into the wild this July for a new reality show on NBC, "Running Wild With Bear Grylls."
The "High School Musical" heartthrob will show his softer side on the show, as he is taken out of his comfort zone and stripped of his celebrity while traveling deep into the wilderness.
"Ultimately, this show is about taking these stars on the adventure of a lifetime and being alongside them when they discover something new and empowering about themselves and their world. For me, that is always a privilege," Grylls said in a statement.
Channing Tatum, Ben Stiller, and Tom Arnold are a few of the other celebs who are slated to appear on the six-episode series.
If this means more shirtless Zac cameos, count us in! What do you think about Efron's charity project? Tell toofab in the comment section and check out even more sexy stars in the gallery below!