Quick Answer

Choose swim trunks with pockets that match your primary activity: secure zip or Velcro pockets for swimming laps, breathable mesh pockets for lounging, and a comfortable fit that doesn't sag when wet.

Why Pocket Placement Matters

Pockets on swim trunks aren't just about carrying stuff—they affect how the trunks fit and feel. Pockets placed on the front or side can add bulk and may flap around when you swim. Look for pockets that lie flat against the body and are made from quick-drying mesh to avoid water pooling.

For active swimming, consider trunks with a secure closure like a zip or Velcro flap. This keeps your phone or keys safe without worrying about them slipping out during a dive. For lounging, open pockets might be more convenient, but they offer less security.

Fabric and Stretch: What to Look For

The fabric of your swim trunks determines both comfort and durability. Four-way stretch materials allow for unrestricted movement, making them ideal for swimming laps or playing beach volleyball. Medium-weight polyester microfiber is a good balance—it's lightweight enough to dry quickly but sturdy enough to hold its shape.

When trying on trunks, do a squat test to ensure the fabric stretches without digging in. Also, check the lining: a built-in mesh liner provides support and prevents chafing, but some men prefer to wear their own underwear underneath. If you go that route, make sure the trunks have a loose enough fit to accommodate that.

Fit and Style: Finding Your Silhouette

Swim trunks come in various lengths and fits, from body-hugging briefs to loose board shorts. The right choice depends on your comfort level and intended use. A sleek, athletic fit is great for swimming and shows off your physique, while a looser cut offers more airflow and a casual vibe.

Consider the rise as well: a higher rise sits at your natural waist and can be more flattering, while a lower rise is more modern but may feel less secure. Ultimately, the best fit is one that stays in place without constant adjustment, whether you're in the water or walking along the shore.

Decision Rules for Choosing Swim Trunks with Pockets

  • Primary Activity: If you swim laps or do water sports, choose trunks with secure pockets (zip or Velcro) and a snug fit to reduce drag. For lounging or casual wear, open pockets and a looser fit are fine. Match pocket security to your activity level.
  • Fabric and Stretch: Look for 4-way stretch fabric like polyester microfiber. It moves with you and dries quickly. Avoid stiff materials that chafe or hold water. Test stretch by doing a squat in the fitting room.
  • Pocket Design: Check that pockets lie flat and are made of mesh or quick-dry material. Ensure they don't bulge or flap when you move. Zip or Velcro closures add security for valuables. Try putting your phone in the pocket and do a few jumping jacks to test security.
  • Fit and Length: Choose a fit that stays in place without constant adjustment. Body-hugging fits are great for swimming; looser cuts are more casual. Consider the rise for comfort and style. Sit, bend, and walk in the trunks to ensure they stay comfortable.
  • Lining Preference: Decide if you want a built-in mesh liner for support or prefer to wear your own underwear. If you plan to wear underwear, make sure the trunks have a relaxed fit. If you go commando, ensure the liner is comfortable and non-chafing.

Products to Consider

  • ErgoWear Men's active and swimwear EW1827 FEEL SW Swim Trunks Color Royal Blue-Palms: ErgoWear Men's active and swimwear EW1827 FEEL SW Swim Trunks Color Royal Blue-Palms: Engineered from high-performance 4-way stretch medium-weight polyester microfiber, offering freedom of movement and a sleek, body-hugging fit. This makes them a solid pick for swimming laps or active beach games where you need full range of motion without extra drag.

    ErgoWear Men's active and swimwear EW1827 FEEL SW Swim Trunks Color Royal Blue-Palms

    ErgoWear Men's active and swimwear EW1827 FEEL SW Swim Trunks Color Royal Blue-Palms

  • ErgoWear Men's active and swimwear EW1829 FEEL SW Swim Trunks Color Aqua-Leaves: ErgoWear Men's active and swimwear EW1829 FEEL SW Swim Trunks Color Aqua-Leaves: Made from high-quality 4-way stretch polyester microfiber with a medium-weight feel, designed for swimming laps or lounging poolside. The versatile design works well for both active and relaxed settings, so you get one pair that transitions from water to deck chair.

    ErgoWear Men's active and swimwear EW1829 FEEL SW Swim Trunks Color Aqua-Leaves

    ErgoWear Men's active and swimwear EW1829 FEEL SW Swim Trunks Color Aqua-Leaves

Who Should Choose What

Best for

  • Active swimmers who need secure pockets and a snug fit
  • Men who want a versatile pair for both swimming and lounging

Not for

  • Those who prefer ultra-loose board shorts with cargo pockets
  • Men who dislike any lining and want maximum breathability