17 Comfy Sundresses That Look Boutique-Worthy but Feel Like Loungewear — All Under $40

When the 90-degree temperatures set in, comfortable dresses aren’t just a want — they’re a non-negotiable. Does that mean passing up on style? Never. The best sundresses feel like your favorite loungewear yet still have boutique-worthy style. Imagine it: soft fabrics, flattering silhouettes and eye-popping prints.

Keep scrolling to shop our roundup of 17 comfy-chic sundresses on Amazon that do just that, and are all under $40. From lounging in the backyard to casual weekend brunches and even errand runs, these are the styles that’ll get the most use in your closet. They’re airy, effortless and are designed to keep you feeling cool and looking polished.

17 Boutique-Worthy Sundresses That Feel Like Loungewear

Easy Everyday Picks

1. Our Favorite: This floral wrap dress gently flatters the curves while the soft and stretchy fabric makes it ultra comfy.

2. Boho-Chic: Channel easy, breezy summer style with this boho printed mini that has an ultra loose-fit design.

3. Must-Have Maxi: From sleek sandals to strappy heels, this T-shirt maxi dress can be styled with all your favorite closet pieces.

4. Has Pockets: If we were making bets, we’d say this tiered midi dress could be your most-used summer piece — especially since it’s got convenient pockets!

5. Throw-On-and-Go: Thanks to its easy, throw-on design, this comfy striped mini dress creates an outfit in seconds.

Beautiful Brunch Picks

6. Our Favorite: Even while sipping mimosas, no one will know that you feel super cozy while wearing this chic smocked midi dress.

7. Floral and Flowy: Hide belly bloating with this floaty floral maxi dress that flatters without clinging.

8. Gorgeous Gingham: This gorgeous gingham dress is made with 100% cotton, so it’ll feel as comfy and light as a picnic blanket.

9. Fabulous Flutter Sleeve: Perfect for hiding arm insecurities this flutter-sleeve dress softly drapes for a feminine and flattering look.

Vacation-Ready Looks

10. Our Favorite: With its floral fabric, this smocked sleeveless dress looks like it could be out of a luxe resort boutique.

11. Tropical-Inspired: Stay relaxed on vacation with this soft and stretchy maxi. It comes in multiple tropical-themed prints to choose from, and is on sale for just $20.

12. European-Looking: Channel Amalfi Coast vibes, even while lounging on your patio with this European-looking dress. It might make you want to book a flight, but that’s neither here nor there.

13. Here for the Halterneck: Not only does this floral halterneck dress give your girls a lift, it snatches the waist with ruching as well.

Polished Office Picks

14. Our Favorite: Upgrade your workwear with this casual mini shift dress that looks complete with sleek sandals, statement jewelry and a clutch.

15. Waist-Defining: Give your waistline definition with this flattering wrap dress that visually slims the midsection.

16. Stretchy and Soft: Meet the office dress code while still feeling comfy in this stretchy mini dress that’s soft-to-the-touch.

17. Try It Tiered: And last but not least, this tiered mini dress looks so boutique-worthy due to the ruffle sleeves and flared hem.