Cheeky Front Knot Monokini - Siena | Festival of Rainbows
- Low stock - 3 left
- Backordered, shipping soon
The Siena Cheeky Rainbow Monokini brings a splash of color to a statement one-piece swimsuit. Our metallic Festival of Rainbows print blends vivid pink, purple, blue, green, and yellow in an ombré that shimmers in the sun.
A plunging neckline meets a front knot just above the open midriff, while a back cutout gives the suit a two-piece look. The high-cut legs create a longer leg line, and the cheeky back coverage sits between full coverage and a Brazilian cut.
Let the rainbow print take center stage with a white sarong, or pick up one of the brighter shades with a colorful cover-up. The Siena is made for pool parties, beach weekends, and wherever you want your swimwear to make the outfit.
Model Sizing:
Anna wears a size small
Height: 5'5" Bust: 35" Waist: 25.5" Hips: 39"
Shop the Print | Festivals of Rainbows
Radiate pure beach joy in our Metallic Festival of Rainbows print — a shimmer-soaked spectrum inspired by sun-faded surf towels, seaside festivals, and salty sunsets. This metallic rainbow swimwear fabric sparkles under the sun with every move.
Designed for carefree days, dancing tides, and golden hour glows, it’s made for the modern mermaid chasing color, freedom, and forever summer.
Sustainably made in small batches with recycled materials, this eco-friendly swimwear is available for both him and her. Each piece is handcrafted for premium quality.
Style: One-piece monokini with front cutout and knot tie bust
Coverage: Cheeky rear with moderate front coverage
Silhouette High-cut leg, cutout monokini one-piece
Neckline Plunging neckline with a front knot at the bust
Cutouts Open midriff and back cutout for a two-piece look
Size: Available in S (2–4), M (6–8), L (10–12)
Sizing: Runs true to size
Lining: Fully lined for comfort and opacity
Details: Front knot, peek-a-boo cutout, high-leg rise
Fabric: 64% Ecoyarn, 16% Metallic, 12% Polyamide, 8% Elastane - All our fabric is constructed from regenerated and recycled materials
Print: Metallic Festival of Rainbows – shimmer-infused rainbow gradient
Color: Multicolor metallic with vibrant pink, yellow, blue, and green
Finish: Smooth-touch shimmer fabric with luxe elasticity
Hardware: None – minimal and movement-friendly
Craftsmanship: Reinforced seams, double-lined for structure
Sustainability: Produced in small batches in ethically run facilities using responsible production practices
Our Salty Mermaid suits are made to keep you feeling confident, comfortable, and totally unstoppable. Because every style has its own unique fit, we recommend checking your bust measurement and using our Size Guide to find your perfect match.
Merbabe tip: With so many styles and shapes to choose from, the best way to discover your ideal fit is by checking your full body measurements. That way, you’ll know your Salty Mermaid suit will hug you in all the right places. And don’t worry—our Try Before You Buy option lets you test your favorites at home before making your final choice.
| SWIMWEAR | X-SMALL | SMALL | MEDIUM | LARGE | X-LARGE |
| US/CANADA | 0-2 | 2-4 | 4-6 | 6-8 | 8-10 |
| SHELL | AA-A | A-B | B-C | C-D | D-DD |
| BOTTOM'S | 00-2 | 2-4 | 4-6 | 6-8 | 8-10 |
| EMBOSSED SKIRTS SIZE | SMALL | MEDIUM | LARGE |
| WAIST | 14"-15.5" | 15"-17" | 16"-18" |
| HIPS | 16.5"-18" | 17.5"-19" | 18.5"-20" |
| LENGTH | 11” | 11.5” | 12.25" |
| KAFTAN | ONE SIZE |
| SLEEVE LENGTH (FROM NECK) | 23" |
| SLEEVE OPENING | 23" |
| BACK LENGTH | 34" |
| SIZE | S/M | M/L |
| WAIST | 13.25"-15" | 15.25"-18" |
| HIPS | 24" | 24" |
| INSEAM | 30" | 30" |
| SHIRT | SMALL | MEDIUM | LARGE | X-LARGE | 2X-LARGE |
| CHEST | 19" | 20.5" | 22" | 23.5" | 25" |
| NECK | 16.5" | 17.25" | 18" | 18.75" | 19.5" |
| LENGTH | 27.5" | 28" | 29.5" | 29.5" | 30" |
| TRUNKS | SMALL | MEDIUM | LARGE | X-LARGE | 2X-LARGE |
| WAIST | 29-30" | 31-33" | 33-35" | 36-38" | 40-42" |
| INSEAM | 4" | 4" | 4.75" | 4.75" | 5" |
| LEG OPENING | 23" | 24" | 25" | 26" | 28" |
Our Cheeky/Full-coverage swim bottoms prioritize comfort and modesty, offering the most fabric across the back and often sitting lower on the hips or at the natural waist. They provide a secure, stay-in-place fit that’s great for active beach days or simply feeling more covered. The shape smooths and supports the hips and rear while still giving a flattering, body-conscious silhouette. This classic cut is a timeless choice for those who want confident coverage without sacrificing style.
Our Semi-Cheeky swim bottom strikes a balance between modest and daring, offering moderate back coverage that reveals just enough.
Our Semi-Brazilian swim bottom offers a happy medium between Brazilian and Semi-Cheeky.
Our Brazilian swim bottom is known for its minimal rear coverage.
For the perfect merman. Designed for comfort, these shorts feature a mesh liner, an elastic waistband with 4-way stretch and a drawstring for secure closure.
With a crisp collar, short sleeves, and front pocket, this shirt is perfect for beach days that turn into beach nights.
- Bust – Wrap the tape around the fullest part of your chest (no bra needed, merbabe).
- Waist – Find the narrowest point of your natural waistline.
- High Hip – Measure at the top of your hip bone, just below the waist.
- Bottom – Measure around the fullest part of your hips and booty.


For the perfect merman. Designed for comfort, these shorts feature a mesh liner, an elastic waistband with 4-way stretch and a drawstring for secure closure.
With a crisp collar, short sleeves, and front pocket, this shirt is perfect for beach days that turn into beach nights.


Returns & Exchanges: Regularly priced items may be returned within 14 days for a refund or exchange. Marked down items are Final Sale.
Shipping & Delivery: Orders will be shipped within 2 business days, Monday through Friday. Shipping times depend on method selected at checkout.
Wash: After each dip in the water, hand wash separately from your seashells.
Dry: Lay flat. Do not wring or attempt to fan dry with your mermaid tail.
Avoid: Keep away from the Sun and Lobsters.
Store: Do not store wet or next to your pet dolphin.
Join our inner circle of bold, playful, and powerful women who live the Salty life. As an official Merbabe, you’ll unlock exclusive perks, early access, limited Merbabe only collections, and sitewide VIP insider pricing.
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