Board Shorts vs. Trunks: Which Swimwear Is Right for You?

Choosing the right swimwear isn’t just about what looks good on the beach. The shorts you choose can affect comfort, freedom of movement, and how well they perform in the water.

Two of the most common styles today are board shorts and swim trunks. While they may seem similar at first glance, they were designed for very different purposes.

In this guide we’ll explain the key differences between board shorts and trunks, how they perform in different situations, and how to choose the style that fits your lifestyle best.

And if you want to learn more about how longer and baggier board short styles evolved, be sure to check out our full guide: Long Boardshorts and Baggy Boardshorts: Style Guide. 

What Are Board Shorts?

Board shorts were originally created for surfing and high-movement water sports.

They first appeared in surf culture during the 1950s and 1960s, when surfers needed shorts that would stay secure while paddling, standing up on a board, and riding waves.

Unlike traditional swimwear, board shorts were designed to solve real problems surfers experienced in the water.

Typical features include:

• Longer length that reaches the knee
• Flat waistband with a drawstring closure
• No internal mesh lining
• Lightweight quick-dry fabrics
• Durable construction for saltwater and sand

Because they were designed for performance, board shorts quickly became popular not only with surfers but also with anyone who spends long days moving between the beach, water, and everyday life.

Today they are just as common on a boardwalk, skate spot, or coastal café as they are in the ocean.

What Are Swim Trunks?

Swim trunks follow a more traditional swimwear design and are typically used for casual swimming or poolside relaxation.

They are generally shorter and designed for simplicity and comfort.

Common features include:

• Mid-thigh length
• Elastic waistband
• Mesh liner for support
• Lightweight quick-dry materials

Because of this design, trunks are popular for pools, resorts, and relaxed beach days rather than high-movement water sports.

They prioritize comfort and convenience over surf-specific performance.

The Key Differences Between Board Shorts and Trunks

While both styles are made for water, their design priorities are different.

Length

Board shorts are longer and usually reach the knee or slightly below.

Trunks are shorter and typically sit mid-thigh.

This difference affects both appearance and functionality.

Longer board shorts offer more protection during surfing or beach sports, while shorter trunks allow for more traditional swimwear styling.

Waistband Design

Board shorts typically use a fixed waistband with a drawstring closure.

This helps keep them secure during surfing, paddleboarding, or other active water sports.

Trunks usually feature an elastic waistband, which is comfortable and easy to wear but not always as secure in rough surf jumping from a rope swing:)

Internal Lining

Most swim trunks include a mesh liner.

Board shorts traditionally do not include a liner, allowing greater freedom of movement and reducing chafing during long surf sessions.

Fabric Durability

Board shorts are usually built with more durable fabrics designed to handle saltwater, surf wax, sand, and repeated movement.

Trunks use lightweight materials that work well for recreational swimming but may not be designed for heavy surf use.

Why Board Shorts Became Popular in Surf Culture

Board shorts evolved directly from the needs of surfers.

In the early days of surfing, shorter swimwear often caused problems. The fabric could bunch up, shift during wipeouts, or rub against the board.

Longer shorts solved several of these issues:

• They protected the thighs from waxed boards
• They stayed more secure in strong waves
• They allowed better freedom of movement while paddling

Over time, the design also influenced skate and beach culture, where relaxed fits and longer silhouettes became part of coastal style.

Today, board shorts are worn not only in the water but also as casual summer wear in many coastal communities.

Comfort and Fit: Which Style Feels Better?

Comfort often comes down to how you plan to use the shorts.

Board shorts tend to feel better for:

• Surfing
• Paddleboarding
• Beach sports
• Active coastal lifestyles

Their longer cut and liner-free design allow for more natural movement.

Trunks tend to work better for:

• Swimming laps
• Pool days
• Lounging
• Casual beach trips

The mesh lining offers support, and the elastic waistband makes them easy to wear all day.

Style Differences

Board shorts are closely connected to surf and skate culture.

They often feature relaxed silhouettes, longer cuts, and designs influenced by beach lifestyle.

Because of their versatility, many people wear board shorts as casual summer shorts, especially in coastal areas.

Trunks tend to lean toward a cleaner, more traditional swimwear aesthetic and are common in resort settings and pool environments.

Choosing the Right Swimwear for Your Body Type

Different swimwear styles can complement different body shapes.

Longer board shorts often work well for:

• Taller individuals
• Slim or athletic builds
• People who prefer relaxed silhouettes

Trunks may work well for:

• Muscular builds
• Shorter heights
• People who prefer more fitted swimwear

Ultimately the most important factor is choosing swimwear that feels comfortable and suits your personal style.

When to Choose Board Shorts

Board shorts are usually the better choice if you:

• Surf or bodyboard
• Spend long days at the beach
• Want swimwear that works both in and out of the water
• Prefer relaxed coastal style

They were designed for movement and durability.

A Coastal Perspective on Board Shorts

Living next to the ocean gives you a different perspective on swimwear.

After testing many boardshort styles over the years — in surf, swimming, and everyday coastal life — one thing becomes clear: the best board shorts need to do more than just look good.

They should:

• Stay secure in the water
• Move naturally with your body
• Dry quickly after a swim
• Work just as well walking around town

That philosophy influenced the design of our Scerfer boardshorts, which focus on comfortable fit, clean style, and fast-drying performance.

They’re designed to transition easily between water, beach, and everyday summer wear. Check out our guide Best Boardshorts for Surfing if you want more info on this topic.

Final Thoughts: Board Shorts vs Trunks

Both board shorts and trunks have their place depending on how you spend your time around water.

Board shorts provide:

• Greater durability
• More freedom of movement
• Surf and coastal lifestyle style

Trunks offer:

• Simplicity
• Classic swimwear comfort
• Easy poolside wear

If your days involve surf, beach activity, or coastal living, board shorts often provide the most versatility.

ScervGear Retro Baggy Board Shorts - Original design from Santa Cruz, CA.

Choosing the right swimwear ultimately comes down to your lifestyle — whether that’s catching waves, skating the boardwalk, or simply enjoying time by the ocean.

Ready to experience the difference? Our Scerfer Baggy Boardshorts are designed with the same principles discussed in this guide — comfortable fit, clean coastal style, and fast-drying performance that transitions seamlessly from water to everyday wear.

Explore our orignally designed retro-inspired Scerfer Baggy Boardshorts, created with a modern touch by ScervGear in Santa Cruz, CA. See our entire 3-piece collection at our online shop.