Long-sleeved, short-sleeved or no sleeves at all, an oversized button-down is a major closet must-have. Its versatility proves itself season after season, and this summer is no different. From a fabulous finishing touch to a 鈥70s-inspired getup to a lightweight dress that鈥檚 perfect for all your off-duty outings, the options are endless. The best part about this timeless topper? Your brother, boyfriend, dad or BFF no doubt has one kicking around, meaning no purchase necessary.

emmahill

1. @emmahill: Take your off-duty style on a trip down memory lane by pairing up this season鈥檚 hottest skirt silhouette with a button-down topper in a relaxed fit. To complete the 鈥70s-inspired ensemble, go with classic aviator shades and a pair of gladiator or chunky sandals. (via @emmahill)

hannahakinyemi

2. @hannahakinyemi: Balance out borrowed-from-the-boys separates with subtle sultry touches that add an instant feminine edge, like a bold red lip and unexpected styling. (via @hannahakinyemi)

carolineeetanujaya

3. @carolineeetanujaya: Layering a short-sleeved chambray top over a colorful casual dress is perfect for infusing your weekend duds with a little 鈥90s flair. Extra bonus points for adding on a bowler hat and on-trend round sunnies. (via @carolineeetanujaya)

modernensemble

4. @modernensemble: When you鈥檙e not feelin鈥 that whole pants thing (and most of us aren鈥檛 when the temperatures start to climb), simply throw on an oversized number and go. A few funky accessories and a stylish cincher will keep the look feeling put-together and polished. (via @modernensemble)

mija_mija

5. @mija_mija: Boyfriend jeans and a relaxed fit shirt are always a winning pair. How we like to wear it? With killer pumps and a crazy stylish clutch, of course. (via @mija_mija)

remiafolabi

6. @remiafolabi: Instead of whipping out your go-to warm-weather topper, why not try a menswear shirt instead? The lightweight material is ideal for when things start to heat up and rollable sleeves mean you can easily adjust to changing temps. (via @remiafolabi)

ezzentrictwee

7. @ezzentrictwee: Go oversized to give sassy skirts and shorts a laid-back, effortlessly cool edge. High-top kicks are a must. (via @ezzentrictwee)

What Insta style stars do you follow? Do you do an #ootd on the regular? Tell us in the comments below, and be sure to tag your pics with @britandco for a chance to be featured in next week鈥檚 post.