Fall is finally here, which means that sweater weather isn't too far behind. When it comes to finding the perfect balance between transitional dressing and cozy comfort, Jennifer Garner knows you can't go wrong with a gray cardigan or sweater. In her recent Instagram posts, the actress can be seen wearing a variety of gray knits, and of course, her classic outfits have inspired Us to go shopping. After heading straight to Amazon, we landed on the PrettyGarden Crewneck Cardigan, which channels Garner's cozy-chic style for just $40.