Swim Trunks vs. Board Shorts: What’s the Difference?
Swimwear is essential for beach outings, poolside lounging, and water sports. Two of the most popular choices for men are swim trunks and board shorts, but what sets them apart? Let’s break down the key differences so you can choose the best option for your needs.
1. Length & Fit
One of the most noticeable differences between swim trunks and board shorts is their length. Swim trunks typically have a shorter cut, ending above the knee, whereas board shorts are longer, often extending past the knee. The fit of board shorts is usually slimmer and more streamlined, designed for active water sports, while swim trunks offer a relaxed, comfortable fit.

2. Material & Fabric
Both swim trunks and board shorts are made from quick-drying materials, but they have slight differences in fabric composition. Swim trunks are often made of lightweight polyester or nylon, featuring a mesh lining for added support. Board shorts, on the other hand, are crafted from sturdier, more durable materials like polyester blends, with a water-resistant coating to reduce drag and improve performance in the water.

3. Waistband & Closure
Swim trunks generally feature an elastic waistband with a drawstring, making them easy to slip on and adjust for comfort. Board shorts, however, typically have a fixed waistband with a Velcro fly and drawstring closure, providing a secure fit that stays in place during intense water activities like surfing.

4. Functionality & Usage
The design of each type of swimwear caters to different activities. Swim trunks are ideal for casual swimming, lounging, and recreational activities. Their relaxed fit and inner lining provide comfort for extended wear. Board shorts, originally designed for surfers, offer enhanced mobility, better coverage, and reduced chafing, making them a top choice for extreme water sports.

5. Style & Fashion
When it comes to aesthetics, swim trunks often come in a variety of fun patterns, bright colors, and shorter silhouettes that embrace a more laid-back, beachy vibe. Board shorts, with their longer and more athletic look, tend to feature bold prints, solid colors, or surf-inspired designs, making them a favorite among surfers and adventure seekers.

Which One Should You Choose?
If you’re looking for comfort and versatility, go with swim trunks. They’re great for casual beach days, pool parties, and general water activities. If you need performance-driven swimwear with extra length and durability, board shorts are the way to go, especially if you’re into surfing or high-energy water sports.
No matter your preference, AO.Surf has a wide collection of both swim trunks and board shorts to keep you stylish and comfortable. Explore our latest designs and find your perfect fit today here