Don't Be Koi Rash Guard

Features of our UPF 50+ Long Sleeve Rash Guard — Built for Sun, Surf and Adventure

Made to move with you and protect what matters, our long sleeve rash guards for women shield you from sun, wind, and wandering elements. Cut in a flattering slim silhouette with smooth, flat seams, this women's rash guard feels as effortless as it looks — while the slightly longer line offers that little extra coverage, just where you want it.

MADE FOR WATER SPORTS

This UPF 50 rash guard is crafted from moisture-wicking fabric with built-in sun protection, making it ideal for swimming laps, ocean swimming, paddling, and long sun-soaked adventures. A rash guard shirt that works as hard as you do, in the water and out of it.

UPF 50+ SUN PROTECTION

Thoughtful protection woven in — this rash guard UPF 50+ blocks 98% of harmful UV rays so you can linger a little longer outdoors without a second thought.

FABRIC

Designed for all-day comfort, this soft-touch polyester–elastane fabric offers 4-way stretch, quick-dry performance, and reliable moisture control — everything you need from a long sleeve swim shirt built for real adventure.

• 75% recycled polyester, 25% elastane for production in the US
• 82% polyester, 18% elastane for production in Latvia
• Fabric weight: 6.64 oz./yd.² (225 g/m²) in the US
• Fabric weight: 6.78 oz./yd.² (230 g/m²) in Latvia
• Very soft four-way stretch fabric that stretches and recovers on the cross and lengthwise grains
• Fitted design
• Comfortable longer body and sleeves
• Flatseam and coverstitch

Long Sleeve Rash Guard Women — Fit Guide

SIZE CHART

We want you to love every wear — our full size chart and body measurement guide is waiting for you just above the Add to Cart button. Take a moment to check it before you order — your future self will thank you.

FITTED SILHOUETTE

Gently tailored through the chest and waist for a flattering, streamlined fit that moves with you. This long sleeve rash guard for women is designed with a close, contouring fit that sits smooth under a wetsuit or wears beautifully on its own. If you prefer a little more ease (or room to roam), we suggest sizing up.

SLIGHTLY LONGER LENGTH

Cut a little longer for extra coverage and confidence — designed to stay put whether you're swimming laps, catching waves, or stretching it out on the mat. This rash guard long sleeve women's style offers that little bit of extra coverage exactly where you want it.

RAGLAN SLEEVES

One-piece sleeves extend diagonally to the collar for enhanced comfort, freedom of movement, and reduced chafing — making this UPF 50 rash guard ideal for long hours in the water or out of it.

Caring for Your Women's Rash Guard

A LITTLE SPLASH OF CARE ADVICE:

Want your fabulous Rash Guards, leggings, shorts and bikinis to keep making waves for seasons to come?

Give it a good freshwater rinse after each adventure to wash away those sneaky salt and chlorine particles that love to crash your fashion party!

And while we adore all things water-related, your garments doesn’t enjoy being left damp and forgotten (it’s a bit high-maintenance that way, but worth it!).

Oh, and one more thing from the care committee—those rough surfaces? They’re the sworn enemies of our beautiful fabrics and will try to pull out the white fibers faster than you can say “underwater botanical extravaganza.” Keep your Splash'd™ pieces away from these texture troublemakers to maintain their picture-perfect appearance!

All of our Splash'd™ pieces should be machine-washed cold or warm with like colors, using gentle detergents and without bleach. Don’t dry-clean or tumble-dry the apparel.

To stop any annoying pilling or snagging of the fibers we suggest separating laundry to protect the fabric from abrasion and friction in the washing process. We don’t just mean separating clothing by color. We suggest also sorting clothes by fabric type. For example, separating tougher fabrics like denim and linens from soft yoga leggings and workout tops. This way, heavier, thicker, and sturdier fabrics will be less likely to damage the lighter ones in the wash by creating extra friction. Another way to prevent pilling in the wash is by turning garments inside out and fastening zippers, buttons, and hooks. Rubbing against these hard objects can damage clothing fibers.

Remember, a little care goes a long way in keeping your outdoor fashion statements speaking volumes!

PAYMENT METHODS

We accept major credit and debit cards, including Visa, Mastercard, and American Express, as well as express checkout options such as Apple Pay, Google Pay, and Shop Pay. All payments are processed securely in USD.

SHIPPING AVAILABILITY

We offer shipping to many regions worldwide, with shipping rates clearly displayed at checkout for your chosen destination. If we’re unable to ship a specific item to your location, this will be shown before you complete your purchase.

DELIVERY + FULFILLMENT

All Splash'd™ pieces are made to order and shipped directly from our trusted production partners. Delivery times may vary slightly depending on your location and the item ordered.

CUSTOMS + DUTIES

International orders may be subject to local customs fees, taxes, or import duties. These charges are the responsibility of the customer and are determined by the destination country. We DO NOT collect any duties or tariffs.

DELIVERY PARTNERS

We work with a range of reputable global carriers to ensure your order arrives safely and reliably.

Your Rash Guard, Made Just for You

All your Splash'd™ garments are made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction – so less wastage! So thank you for making thoughtful purchasing decisions and helping to reduce waste—the Earth thanks you!

Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the flammability, and formaldehyde, azo dyes, lead, cadmium, bisphenols, and phthalates level requirements.

In compliance with the General Product Safety Regulation (GPSR), Splash’d™ and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at Splashd, C/O Harrietville PO, Harrietville, VIC, 3741 Australia or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.