Allthreads Rio Geometric A-Line Tank Dress
Description
Your All-Day Summer Essential
The Beauty of the Rio Fit
The Rio Dress is a masterclass in easy-to-wear fashion. Designed with a 37.5-inch length that hits right around the knee, it offers the perfect balance of coverage and playfulness. The wide tank straps are a deliberate design choice, allowing you to wear your favorite supportive bra without worrying about peeking straps. The U-back and scoop neck provide a classic, feminine frame that feels open and airy, making it the premier choice for high-humidity climates or beach destinations.
High-Performance Stretch Fabric
Made from a premium lightweight polyester knit, the Rio offers a super-soft, high-stretch feel that mimics the comfort of your favourite loungewear while maintaining the structure of an elevated dress. This fabric is a traveler’s dream—it resists wrinkling in your suitcase and dries quickly, even if you’re caught in a summer rain shower. The knit fabric weight is specifically chosen to be light enough for a "weightless" feel but substantial enough to not be see-through.
Two Prints, Two Personalities
The Rio comes in two beautiful, head-turning geometric patterns:
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Valencia: A warm-toned fusion of pink and red geometric leaves. It’s vibrant, exotic, and pairs beautifully with gold jewelry and a tan.
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Marina: A cool, classic blue damask print that feels slightly more formal and oceanic—perfect for a cruise dinner or a morning at the local flower market.
Fit Notes
Frequently Asked Questions
Details
Shipping & Final Sale Policy
Sale items are priced to move and, because of that, we're not able to offer returns or exchanges on anything marked down. We know that's not always convenient — if you're unsure on sizing, our size chart and team (in-store or via chat) are happy to help before you order. Full-price items still enjoy our standard return policy.
Rio Dress Size Chart
| Size | Numeric Size | Bust (Inches) | Waist (Inches) |
| Small | 4-6 | 16 | 14 |
| Medium | 8-10 | 17 | 15 |
| Large | 12-14 | 18 | 16 |
| X-Large | 16 | 19 | 17 |
*All Sizes in Inches. American Sizing/Fit









