TORTUGA SWIM TOP | Supportive mockneck rash guard

From $188.00

TORTUGA SWIM CROP TOP

A supportive long-sleeve swim crop top with a mockneck and gentle bust support. Made from breathable Merino wool or Alpaca, this versatile piece offers comfortable coverage for swimming, layering, and everyday wear.

Handmade in Vermont, USA.

AlpacaAlpaca
Merino WoolMerino Wool
Good for SwimmingGood for Swimming

Description

TORTUGA SWIM CROP TOP

The Tortuga Swim Crop Top combines the coverage of a long-sleeve rash guard with gentle bust support. Made from breathable Merino wool or Alpaca, this versatile swim top is designed for swimming, layering, and everyday wear.

Merino

Lightweight, breathable, and quick-drying. Keeps you feeling dry after swimming.

Alpaca

Ultra-soft, insulating, and naturally water-repellent. Absorbs even less moisture and is stronger than Merino.

Want to know more about natural fiber swimwear? Explore Swimwear FAQs.

Features:

  • Gentle bust support
  • Mock turtleneck
  • Long sleeves
  • Cropped silhouette
  • 1/4″ elastic in band

 

Handmade in Vermont, USA.

Brown photos: ©Jam Creative VT

Additional information

Weight .6 lbs
Cup Size

XS, S, M, L, XL, 2X, 3X

Band Size

XS, S, M, L, XL, 2X, 3X

Color

Black Merino, Brown Merino, Charcoal Alpaca

Wool Care

Cold Hand Wash or Gentle Cycle, Hang or Dry Flat

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Natural Swimwear FAQ

What is natural or plastic-free swimwear made from?

While this natural swimwear is not 100% plastic free, it is made primarily from natural fibers including merino wool, alpaca, and modal. Most styles are approximately 95% natural fiber, with about 5% spandex, and elastics and straps include nylon and spandex for structure and durability.

This blend allows the swimwear to maintain shape, comfort, and longevity while still prioritizing natural materials.

Both merino wool and alpaca are breathable, soft, and exceptionally low in moisture absorption—making them uniquely suited for swimwear. After swimming, they shed water quickly and feel dry to the touch, keeping you light and comfortable.

Merino is lightweight, versatile, and ideal for all-day wear. Ultrafine merino feel soft against the skin while naturally wicking moisture—making it a great choice for both swimming and movement.

Alpaca offers an ultra-soft, more luxurious feel. Its naturally hollow fibers help regulate temperature while repelling water, absorbing even less moisture than merino. It’s also hypoallergenic and rare in stretch fabrics.

The alpaca fabric is blended with modal—a plant-based rayon fiber—adding strength, stability, and durability, especially when wet.

While natural—and excellent for undergarments—cotton tends to feel cold when wet and retains a high amount of water, leading to a heavy, slow-drying feel after swimming.

Merino wool and alpaca behave differently, absorbing far less moisture and drying quickly for a lighter, more comfortable experience.

Take gentle care of your swimsuit to help preserve its natural fibers:

  • Rinse in cold water immediately after swimming
  • Hand-wash in cold water, or use a gentle machine cycle in a garment bag (this keeps it from angling and magnets from hitting the machine) 
  • Hang or lay flat to dry in the shade
  • Do not tumble dry

It’s not ideal.

While 95% merino wool or alpaca blend underwear will dry quickly, it may be see-through because it is made from a single layer of fabric, unlike the swimwear. Additionally, most underwear styles have little to no elastic in the seams, whereas swimwear includes elastics in the leg openings and waist for a secure fit.

Yes!

Since all Hanna Broer bras are made with a double layer of fabric and contain elastics to keep a good hold, you can use the 95% merino bras for swimming. The merino blends with Tencel™ may be less suitable, since they may be see though, and the merino content is much lower.

Yes!

Natural swimwear made from merino wool and alpaca is breathable and quick drying, making it a comfortable option for everyday undergarments. They have more hold and structure than most of the single layer underwear styles, which is great if you like a secure fit. 

Not for a modern, stretchy swimsuit.

While advancements are being made in biodegradable materials, it is not currently possible to create snug-fitting, supportive, and durable swimwear without elastane (spandex) or synthetic elastics.

No.

Natural swimwear is functional, comfortable, and breathable but will feel and behave differently compared to synthetic swimwear.

All items suitable for swimming are listed in the “swimwear” category.

You can also look for the “good for swimming” icon on each product page.

Good for swimming icon

Find My Size: Bras & Tops

Use your underbust and bust measurements to get your band and cup sizes. Band sizes are XS-3X; 4X cups may be available by request.

Enter your measurements and click calculate.