Swim Trunks vs Board Shorts: What Is the Difference?
Swim trunks sit above the knee with a shorter inseam (3 to 7 inches). Board shorts are longer, typically 9 to 11 inches, reaching the knee or below. If you want something that looks modern, dries fast, and is comfortable in and out of the water, swim trunks are the better choice for almost every situation.
The main differences at a glance
| Feature | Swim Trunks | Board Shorts |
|---|---|---|
| Inseam length | 3 to 7 inches (above knee) | 9 to 11 inches (at or below knee) |
| Liner | Built-in liner (mesh or compression) | Often no liner, or mesh |
| Fabric | Lightweight, quick-dry stretch | Often heavier, less stretch |
| Drying time | Fast, 30 to 60 minutes | Slower, heavier fabric holds water |
| Best use | Beach, pool, resort, travel, all-day wear | Surfing, prolonged ocean activity |
| Style | Modern, athletic, versatile | Casual, relaxed, surf-focused |
| Pockets | Typically zip-secured | Often Velcro or open, less secure |
What are swim trunks?
Swim trunks are men's swimwear with a short inseam, typically between 3 and 7 inches. They sit above the knee and are designed for swimming, beach wear, and resort life. Most swim trunks have a built-in liner, a drawstring waist, and lightweight quick-dry fabric. Premium swim trunks like Tucann's include zip pockets and a compression liner instead of mesh.
The shorter length is both a style choice and a functional one. Trunks above the knee elongate the leg, look more modern, and create less drag in the water than longer styles. The 5-inch inseam is the most popular length globally and suits most body types.
What are board shorts?
Board shorts originated in surf culture and are designed specifically for surfing and extended ocean use. They are longer than swim trunks, typically 9 to 11 inches, reaching the knee or below. They are usually made from a durable but heavier fabric with a flat front and Velcro or tie closure.
Board shorts excel at protecting the skin during long sessions in the ocean and provide freedom of movement for paddling. However, they take longer to dry, look dated outside surf environments, and the longer length shortens the leg visually.
Which is better for beach holidays and resort wear?
Swim trunks. The shorter length looks better poolside and at resort bars, dries faster when moving between water and land, and works as casual shorts for lunch or a walk without looking like you just came off a surfboard. Board shorts have largely been replaced by swim trunks for non-surf beach and resort wear in the last decade.
Which is better for surfing?
Board shorts, specifically because the longer length protects the wax rash on the stomach from the board. For casual beach swimming and bodysurfing, swim trunks work perfectly well. For serious surfing sessions, board shorts or wetsuits remain the preferred choice.
Which is better for the pool?
Swim trunks. The lighter fabric and shorter length create less drag. A compression liner (like the Aqua Liner in Tucann swim trunks) provides support without the need for separate underwear, and the quick-dry fabric means you are comfortable immediately after getting out.
What inseam length is best for men?
For most men, a 5-inch inseam is the most versatile choice. It sits mid-thigh, looks modern and athletic, and works everywhere from the beach to a resort pool bar. Taller men often suit a 7-inch inseam for better proportion. Men who prefer a shorter, more European style suit the 3-inch inseam. Anything reaching the knee or below reads as dated for non-surf settings.
Tucann swim trunks vs board shorts
Tucann makes premium men's swim trunks in 3-inch, 5-inch, and 7-inch inseams. Every pair includes the Aqua Liner, a proprietary compression liner made from swim fabric rather than mesh, plus two zip-secured pockets, four-way stretch quick-dry fabric, and a modern athletic fit. They are built for men who want something that works at the beach, pool, and everywhere between.
