Swim Tank - Black-Swim-TomboyX
Swim Tank - Black-Swim-TomboyX

Swim Tank

4.4 star rating 66 Reviews
Color Black
Size Chest Underbust
XS 32-33" 26.5-27.5"
S 34-35" 28-29"
M 36-37" 30-31"
L 38.5-40" 32.5-34"
XL 41.5-43.5" 36-39"
2X 44-46" 39.5-41"
3X 48-50" 43.5-45.5"
4X 52-54" 47-49.5"

For more detailed information, please see our Fit Guide page.

Measure chest at fullest point to determine size.
Follow the underbust measurement if between sizes.
Size down if between sizes.

Size chart

Using Internet Explorer will cause problems with your order. Please use a supported browser like Chrome, Firefox, Microsoft Edge, or Safari to shop TomboyX.

These soft and lightweight tops are ready to go in the surf and sand. Made from moisture-wicking eco-friendly materials. Designed and fit-tested by team TomboyX. 79% Polyester/21% Spandex treated with Eco-Friendly Chitosante.

  • UV Protective with UPF 50
  • Eco-friendly recycled knits
  • Unlined
  • Anti-bacterial, non-toxic, breathable, + wicking
  • EPA Certified
  • Hand wash only - Line dry

Living Wage factories

Ethically produced in women-owned factories that pay living wages.


fit-tested for every body

Obsessively fit-tested on real people, sizes XS-4X.


Love at first wear

If you don't love them, your first pair is on us.


eco-friendly process

Sustainably harvested materials and earth-conscious production.