Jennifer Garner wows in the September issue of Allure magazine, opening up about her marriage to Ben Affleck and how she keeps her fit figure alive.

The 41-year-old mom-of-three, who catapulted into stardom for playing Sydney Bristow on "Alias," admits she worries about losing her edge sometimes, especially when she's on the red carpet.

"Sometimes it's a pain because my heels are so high and it would be really nice to have his [Affleck's] arm. And he's such a great date! But it can be too much," Garner tells Allure. "I think especially for women, they can really lose their identity and just become 'wife of.'"

And although it's not bad being the wife of Ben Affleck, Garner made it big on her own and plans to keep her career going. Her first step: getting back into shape.

"There were times I had to watch every calorie that went into my body. Doing something like that again ... it's not exactly on the top of my list," Garner says of her diet routine, continuing, "I've been working out with Valerie Waters for 13 or 14 years. I'll do different things. I did Spin for a little while, and I like yoga. I've been doing Pilates with this woman who was trying to get my abs back in shape after the last baby kind of did me in."

Still, Garner is lucky to have a man that loves her no matter what. When asked during the Allure photoshoot when she feels sexiest, she joked, "With the lights being off," before adding, "I mean, it doesn't hurt to have great hair and makeup done, I'm not going to lie to you. But, it also doesn't hurt to have somebody who likes you when you don't have great hair and makeup done."

See photos from Jen's Allure cover shoot below and pick up the new issue when it hits newsstands on Aug. 20:

jennifer garner allure

jennifer garner

Also on HuffPost:

Loading Slideshow...
  • Neutrogena brand ambassador and actress Jennifer Garner attends the 2013 Neutrogena Sun Summit at the Chelsea Arts Tower on Wednesday March 13, 2013 in New York. (Photo by Evan Agostini/Invision/AP)

  • LOS ANGELES, CA - MARCH 10: Actress Jennifer Garner attends the John Varvatos 10th Annual Stuart House Benefit presented by Chrysler, Kids Tent by Hasbro Studios, at John Varvatos Los Angeles on March 10, 2013 in Los Angeles, California. (Photo by Jason Merritt/Getty Images for John Varvatos)

  • HOLLYWOOD, CA - FEBRUARY 24: Actress Jennifer Garner and actor-director Ben Affleck arrive at the Oscars at Hollywood & Highland Center on February 24, 2013 in Hollywood, California. (Photo by Jason Merritt/Getty Images)

  • US actress Jennifer Garner poses on the red carpet upon arrival to attend the annual BAFTA British Academy Film Awards at the Royal Opera House in London on February 10, 2013. AFP PHOTO/ANDREW COWIE

  • LOS ANGELES, CA - FEBRUARY 02: Actress Jennifer Garner attends the 65th Annual Directors Guild Of America Awards at Ray Dolby Ballroom at Hollywood & Highland on February 2, 2013 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)

  • LOS ANGELES, CA - JANUARY 27: Actress Jennifer Garner arrives at the 19th Annual Screen Actors Guild Awards held at The Shrine Auditorium on January 27, 2013 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

  • BEVERLY HILLS, CA - JANUARY 26: Actress Jennifer Garner arrives at the 24th Annual Producers Guild Awards held at The Beverly Hilton Hotel on January 26, 2013 in Beverly Hills, California. (Photo by Jason Kempin/Getty Images)

  • BEVERLY HILLS, CA - JANUARY 13: Actress Jennifer Garner poses in the press room during the 70th Annual Golden Globe Awards held at The Beverly Hilton Hotel on January 13, 2013 in Beverly Hills, California. (Photo by Kevin Winter/Getty Images)

  • WASHINGTON, DC - OCTOBER 10: Jennifer Garner attends America's Report Card 2012: Children in the U.S. event at Russell Senate Office Building on October 10, 2012 in Washington, DC. (Photo by Leigh Vogel/Getty Images)

  • WASHINGTON, DC - OCTOBER 10: Jennifer Garner attends the 'Argo' Washington D.C. Premiere at Regal Gallery Place Stadium 14 on October 10, 2012 in Washington, DC. (Photo by Leigh Vogel/Getty Images)

  • BEVERLY HILLS, CA - OCTOBER 05: Actress Jennifer Garner arrives at Variety's Power of Women presented by Lifetime at the Beverly Wilshire Hotel on October 5, 2012 in Beverly Hills, California. (Photo by Kevin Winter/Getty Images)

  • BEVERLY HILLS, CA - OCTOBER 04: Actress Jennifer Garner arrives at the premiere of Warner Bros. Pictures' 'Argo' at AMPAS Samuel Goldwyn Theater on October 4, 2012 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)

  • NEW YORK, NY - SEPTEMBER 27: Actress Jennifer Garner attends The Cinema Society with DKNY, Forevermark & RentTheRunway.com premiere of 'Butter' at AMC Lincoln Square Theater on September 27, 2012 in New York City. (Photo by Stephen Lovekin/Getty Images)

  • TORONTO, ON - SEPTEMBER 07: Actress Jennifer Garner attends the 'Argo' premiere during the 2012 Toronto International Film Festival at Roy Thomson Hall on September 7, 2012 in Toronto, Canada. (Photo by Mark Davis/Getty Images)