Everyone needs a good trench coat in their fall wardrobe. Admittedly, I only recently bought one after borrowing and not returning my mom's years ago (for the record, I'm not proud of this). But I'm happy to report that I recently purchased the Old Navy Water-Resistant Tie-Belt Trench Coat ($85), and everything I wanted: chic, timeless, and versatile. Ahead, find out everything you need to know about the brand's bestseller before you add it to your shopping cart.

Old Navy Water-Resistant Tie-Belt Trench Coat

From

$85

$85 at Old Navy

I scooped up this trench in my usual size medium, choosing the ivory color dubbed "Wish Bone." Right upon slipping it on, I knew it was a keeper. For starters, I fell in love with the length, which hits just below my knee. And there's no shortage of stylish details, from the tortoiseshell buckle and buttoned epaulettes to the button-tab cuffs and storm flap in the back.

I'm also a big fan of the material. While it's been too hot where I live to wear it out and about just yet, I'm confident that its smooth texture is firm enough to hold its shape in a breeze yet soft enough that it'll feel comfortable even after hours of wear. It's also water-resistant, making it ideal for days when the weather looks questionable.

The first thing worth noting about this trench coat is that it's slightly oversize, which I like because it means it won't feel tight over fall sweaters — and IMO, it makes it look more fashion-forward, too. But some shoppers intentionally sized up to achieve a roomy fit and found that they were "swimming in it." The takeaway: order your usual size for a slightly oversized fit and a size down for a more fitted look.

Another thing worth flagging is that this trench coat is really lightweight and born to be a thin layer of outerwear. For that reason, it makes a great transitional piece as temperatures start to get chilly and it will also keep you from getting overheated when layered over a warm sweater. Nonetheless, a few reviewers "wish the material had weight to it."

This trench coat is perfect for those like me who have been meaning to add the style staple to their fall wardrobe — and want a style under $100 that's suitable for all occasions.

Rating: ★★★★★