男士泳褲與平口泳褲版型指南

Quick answer

Choose men's swim shorts if you want a relaxed, regular-fit silhouette with a short leg and mesh lining for comfort and support. Choose a box-cut swim brief if you prefer a closer, low-profile fit that stays put in the water. The deciding factors are leg length, coverage, and how much lining you want.

Leg length and coverage: the real difference

Swim shorts sit at the waist with a regular fit and a short leg. On a size M, the inside leg measures 6.5 cm (2.6"), so they clear the thigh and dry quickly without riding up. A box-cut swim brief removes the outer short entirely and relies on a close cut around the hip and upper thigh. That means less fabric, less drag, and a silhouette that reads as athletic rather than casual.

If you are between sizes in swim shorts, consider sizing down for a closer fit. Box-cut briefs are less forgiving because there is no loose outer layer to mask a gap at the waist or leg. Check the size chart for both and prioritize waist measurement over leg length when the two conflict.

Lining, waistbands, and what you feel in the water

The CDLP Swim Shorts include a mesh lining for comfort and support plus an elastic waistband. That lining does most of the work a separate brief would do, which is why many swimmers never need a second layer. A box-cut brief skips the mesh short and puts the support directly against the skin, which reduces bulk and eliminates the chance of a loose liner shifting.

Both styles use an elastic waistband in the CDLP range, but the box-cut brief sits lower and closer. If you dislike the feeling of mesh against your skin, the brief is the cleaner option. If you want the option to wear the short as a standalone piece away from the water, the lined swim short is more versatile.

Fabric and drying time

The CDLP Swim Shorts are made of Econyl®, a nylon fibre repurposed from landfill and ocean waste. Nylon dries fast and holds its shape, which suits repeated swimming and travel. A box-cut brief in the same nylon family behaves similarly, but with less fabric it dries even faster and packs smaller.

If your priority is a lower environmental footprint, Econyl® is a concrete reason to choose the swim short. If your priority is minimal packing and quick turnaround between swims, the brief has the edge. Neither fabric choice changes the fit decision; it only changes how the piece performs after you leave the water.

How to decide without overthinking it

Start with where you will wear it. For a pool lane or a swim-focused session, a box-cut brief reduces drag and stays in place. For a beach day, a resort pool, or mixed activity where you want more coverage and a relaxed look, swim shorts are the safer pick.

Then check the leg length. A 6.5 cm inside leg on a size M is genuinely short, so if you are used to mid-thigh trunks, expect more thigh exposure. If that feels like too much, a box-cut brief is not the answer either; look for a longer trunk instead. The choice is about matching the cut to your comfort, not about one style being better.

Trade-offs at a glance

• Coverage vs freedom: Swim shorts cover more of the thigh and give a relaxed silhouette; a box-cut brief covers less and moves with you without loose fabric. Pick shorts for coverage, briefs for a close feel.
• Built-in support vs direct support: The CDLP Swim Shorts have a mesh lining and elastic waistband for comfort and support; a box-cut brief provides support directly against the skin with no liner. If you dislike mesh, the brief is the cleaner option.
• Versatility vs packability: Lined swim shorts can double as a casual short away from the water; a box-cut brief packs smaller and dries faster because it uses less fabric. Choose based on whether you need one piece to do two jobs.

Product facts that affect the choice

• Swim Shorts: Regular fit, short leg, inside leg length size M 6.5 cm/2.6", mesh lining for comfort and support, elastic waistband, made of Econyl® nylon repurposed from landfill and ocean waste. Gives you a clear leg-length number to compare against your current trunks and explains the built-in support that replaces a separate brief.
• 6 × Boxer Shorts: Boxer Shorts with a mid waist, loose fit, original signature waistband, made of TencelTM lyocell from certified renewable wood sources with silk-like softness, breathability, and moisture wicking. If you want a loose, breathable layer for before or after swimming, this shows the fabric and fit difference from a close-cut swim brief.

Which one should you choose?

Best for

• Swimmers who want a relaxed fit with a short leg and built-in mesh support
• Beach or resort wear where more thigh coverage feels more comfortable
• Anyone who wants one piece that works in and out of the water

Not for

• Swimmers who want the lowest-drag, closest cut and no liner
• Anyone who prefers mid-thigh or longer trunk coverage
• Packers who want the smallest possible swim kit