Do You Wear a Swimsuit Under a Rash Guard?
Do you need to wear a swimsuit under a rash guard? Learn what women typically wear underneath, when you need a swim top, and when you can skip one.
If you're new to wearing rash guards, you may be wondering what you're actually supposed to wear underneath one. Do you need a swimsuit? A bikini top? A sports bra? Or can you simply wear the rash guard on its own?
The answer depends largely on the type of rash guard you're wearing and how much bust support and coverage you need.
Traditional rash guards usually don't have built-in bust support, so most women wear a swimsuit, bikini top, or swim bra underneath. However, some women's rash guards now include a built-in shelf bra or bralette, allowing them to be worn as a standalone swim top.
What Do Women Wear Under a Rash Guard?
For a traditional rash guard without built-in support, you can wear almost any swim top underneath, including:
- A bikini top
- Sports-style swim bra
- One-piece swimsuit
- Supportive swim top
Which option is best really comes down to comfort.
If you're swimming, surfing, paddle boarding, kayaking, or participating in other active water sports, choose something that stays securely in place and won't create uncomfortable straps, clasps, or ties underneath your rash guard.
Can You Wear a Rash Guard Without a Swimsuit Top?
Yes, if the rash guard is designed to be worn that way.
Some women's rash guards include a built-in shelf bra or bralette that provides light support and additional coverage. These styles eliminate the need for a separate bikini top for many women.
A built-in shelf bra typically includes a stretch lining and elastic band beneath the bust. Some also have removable pads that provide additional shaping and coverage.
For women who prefer light support, this can make getting dressed for the beach considerably simpler: one top provides both UPF sun protection and bust coverage.
What If I Need More Bust Support?
A built-in shelf bra provides light support, not the same support as a structured bra or high-support sports bra.
Women with fuller busts, or anyone who simply prefers more support, may still want to wear a supportive swim top underneath.
You can also remove the pads from a built-in bralette and wear your preferred swim bra underneath instead.
There's no single correct way to wear a rash guard. The goal is to find the combination that makes you feel comfortable and supported.
Can You Wear a Regular Bra Under a Rash Guard?
You can, but it's generally not the best option for swimming.
Everyday bras aren't designed for repeated exposure to chlorine, saltwater, and prolonged moisture. They can also take much longer to dry than swimwear.
A swim bra, bikini top, or sports-style swim top designed for water will usually be more comfortable and durable.
Do You Wear a One-Piece Swimsuit Under a Rash Guard?
Absolutely.
Wearing a rash guard over a one-piece swimsuit is an easy way to add upper-body sun protection without buying an entirely new swimsuit.
It also gives you flexibility. You can remove the rash guard when you're out of the sun or leave it on throughout the day for additional coverage.
What About Rash Guards for Paddle Boarding?
For paddle boarding and other activities where you're exposed to the sun for extended periods, a long-sleeve UPF 50+ rash guard is particularly useful.
You can pair it with a swimsuit, swim shorts, or swim leggings depending on how much coverage you want.
A rash guard with a built-in shelf bra can simplify your paddle boarding outfit even further by combining a swim top, light bust support, and sun protection into a single layer.
The Bottom Line
You don't always have to wear a swimsuit under a rash guard.
Traditional rash guards don't usually provide bust support, so most women wear a bikini top, swimsuit, or swim bra underneath.
If your rash guard includes a built-in shelf bra or bralette, however, you may be able to wear it by itself. Women who need additional support can still layer a supportive swim top underneath.
At Berry Jane, we offer both traditional women's rash guards and select styles with built-in shelf bras and removable pads, so you can choose the amount of support and layering that works best for you.