Fans Gush Over Jennifer Garner's Kindergarten Photo in 'Homemade' Jumper

Jennifer Garner delighted fans with a sweet childhood picture to commemorate the first day of school.

On Aug. 29, the 13 Going on 30 star shared an adorable kindergarten photo. In the snap, young Garner's hair was cropped into a bowl cut. She wore a peter pan-collared long sleeve white shirt over a navy blue-colored jumper with embroidered flowers, paired with a heart necklace.

Garner captioned the post, "Happy back to school, everyone, from kindergarten Jen in her homemade and hand embroidered jumper. Featuring a necklace earned by practicing piano. Congratulations, Mamas, and 😭😭 they’re so big xxxx 🍎📝♥️📚🚸🖍️."

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Celebrities and fans alike loved the throwback.

"Adorable!," gushed The Office star Angela Kinsey. "Oh MYYY," commented Taylor Lautner. "We would have played some serious jump rope together," shared Once Upon a Time alum Merrin Dungey.

"How have you looked exactly the same your whole life?! So cute," exclaimed a fan. Another wrote, "So perfect,--the eyelet collar, dimples, and your pixie cut!!! is it the growing-out Dorothy Hamill or the Toni Tennille circa 1977?!! Soooo Cute!" A different fan added, "Beautiful then, and beautiful now❣️❣️❣️...love the jumper, and the darling ♥️ necklace ❣️."

The Alias alum is well prepared for back-to-school time. In a new clip from her kids snacks company Once Upon a Farm, Garner showed how she packs a lunch for her children Violet, 17, Seraphina, 13, and Samuel, 11. She filled a lunchbox with pineapple, dragonfruit, banana, some fresh spinach, and her brand's Immunity Blend juice.

Next: 'I Tried Jennifer Garner's Favorite Childhood Pie and It's a True Slice of Heaven'