This Is Exactly How Jennifer Garner Sculpted Her Insane Arms

Alert: Jennifer Garner’s Trainer Just Shared How She Sculpted Those Insane Arms

Did she get ripped overnight or is it just us? - by Kristine Thomason

Uh, have you seen Jennifer Garner's arms lately? They look INCREDIBLE. She's always looked amazing (that hair tho), but lately, we just can't stop staring at those arms that look like they could bench press one of her super-cute kids.

#RileyNorth made her first appearance yesterday at #CinemaCon for #PEPPERMINTmovie. It's so badass, #PierreMorel-bon travail! I can't wait for you all to see it, too...#trailercomingsoon #movieseptember7th #sydneygrowsupandgetsmad ・・・ Hair: @renatocampora Makeup: @karayoshimotobua Styling: @jillandjordan Stuff I Wore: @roland_mouret, @jimmychoo, @beladorajewelry

Apparently, Jennifer has Simone De La Rue, trainer and founder of Body by Simone, to thank for her brand-new biceps. De La Rue has worked with Jennifer for years, but she took her training to a whole new level while preparing her for a role in the upcoming action film Peppermint.

"We knew that we needed to look like an action figure," she told Women's Health, "So obviously we needed to target the arms."

According to De La Rue, Jennifer worked out six days a week, for one to two hours a day to prep for the role. "We worked on lifting heavier weights, usually around 15 pounds," she says, "we also did a lot of bodyweight work, and supplemented with my custom resistance bands."

She added that the bands are particularly great for travel, because you can just throw them in your bag—which was really helpful when Jennifer was on the road. In fact, one of De La Rue's favourite moves for Jennifer is an overhead press using the bands:

Fitness Friday! I am using my custom @theraband CLX band. Bicep curl to shoulder press. Main muscles worked: biceps 💪🏻 deltoids, pecs. 20 reps on each side, alternating arms. Slow the pace down for proper form and control. #bodybysimone #simonedelarue #fitnessfriday #theraband #clxband

They also didn't skimp on the triceps workouts (and that certainly shows!). De La Rue says they did plenty of triceps extensions with weights and the resistance band, along with triceps dips.

Jennifer also took advantage of De La Rue's Body By Simone App, which allowed her to access custom workouts, personal training, and live streaming, says De La Rue.

BRB, heading to the gym to fire up that app and torch the triceps.

This article originally appeared on Women’s Health US.