Rashguard vs Wetsuit: Which One Do You Actually Need?

It's one of the most common questions from new surfers and beach lovers: do I need a rashguard, a wetsuit, or both? The answer depends on water temperature, sun exposure, and how you plan to use it. Here's the definitive breakdown.

What Is a Rashguard?

A rashguard is a lightweight athletic shirt made from spandex and nylon or polyester. It was originally designed to prevent rash from surfboard wax - hence the name. Today it serves multiple purposes:

  • Sun protection: Most rashguards offer UPF 30-50+ protection, blocking harmful UV rays better than most sunscreens.
  • Abrasion protection: Prevents rash from board wax, sand, and contact with other surfers.
  • Light warmth: Adds a small layer of insulation in mild water temperatures.
  • Style: Let's be honest - a great rashguard is also just a great look in and out of the water.

Best for: Warm water (70�F+), sunny conditions, light surfing, swimming, snorkeling, paddleboarding.

Browse Pena Life's rashguards for men, women, and kids.

What Is a Wetsuit?

A wetsuit is a thick neoprene suit designed to trap a thin layer of water against your skin, which your body then heats, keeping you warm in cold water. Wetsuits come in different thicknesses measured in millimeters (2mm, 3/2mm, 4/3mm, etc.).

  • 2mm: Spring suit. Good for water temps 65-70�F.
  • 3/2mm: Full suit. The most common. Water temps 58-65�F.
  • 4/3mm and above: Cold water surfing. Below 58�F.

Best for: Cold water (below 68�F), extended sessions, winter surfing.

The Key Differences

Feature Rashguard Wetsuit
Water temp 68�F and above Below 68�F
Sun protection Excellent (UPF 30-50+) Minimal
Warmth Minimal Excellent
Flexibility Maximum Moderate
Price - -+
Care Easy (machine wash) Rinse with fresh water only

Can You Wear Both?

Yes - and many surfers do. Wearing a rashguard under a wetsuit adds a layer of comfort, reduces chafing from the neoprene, and makes the wetsuit easier to get on and off. It's especially useful for longer sessions where neoprene rub becomes a real issue.

What Should You Buy First?

If you're in California, Florida, Hawaii, or anywhere with consistently warm water - start with a rashguard. It's versatile, affordable, and you'll use it every single session. A wetsuit is a bigger investment you add later as you surf more and venture into colder water.

Our Pena Life rashguards start at and are available for men, women, and kids. Free shipping and free returns on every order.

Live Freestyle. - Pena Life, Huntington Beach, CA

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