Choose the CX04 athletic swim brief if you want a secure adjustable drawstring waistband and full rear coverage.

What makes the fabric unique?

Smooth, stretchy Italian swim fabrics provide a close, supportive fit that moves comfortably in the water. Selected styles use chlorine-resistant Extra Life Lycra® for improved shape retention; finishes and performance vary by style.

How do I find my size?

Measure your low waist and follow the chart. Swim fabric stretches less; choose the larger size if between sizes.

Which pouch should I choose?

For swimming, Snug offers subtle lift and Contour offers close, sporty support; Original is most enhancing where available. Check the product.

How should I care for this collection?

For all swim styles, rinse immediately after pool or sea use, hand-wash cold with no harsh detergents or bleach, and air-dry in the shade. Check each garment label.

Shop Drawstring Swim Brief

The classic swimwear brief re-invented and re-invigorated. Featuring an athletic cut, Cocksox Drawstring swim briefs are made from the highest quality chlorine-resistant Italian Lycra and are fitted with an internal drawstring for extra support.

The CX04 comes with the Snug Pouch for a refreshing uplift, while the CX06 has the Contour Pouch for maximum support during activity. These briefs are the ultimate combination of form and style. With a wide range of bold colours and prints to choose from, it’s time to discover a new favourite!

The classic swimwear brief re-invented and re-invigorated. Featuring an athletic cut, Cocksox Drawstring swim briefs are made from the highest...

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CX04 Drawstring Swim Brief

Jet Black¥4,600 JPY

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Polyamide Elastane

92% Polyamide 8% Elastane
Premium Ribbed Italian fabric
Soft feel and two-way stretch
Lightweight - 200 g/m²
Great fit and comfort
Maximum shape retention even after repeated washings
Helps sweat to evaporate

To help preserve the quality of your garment, we recommend turning it inside out or placing it in a wash bag before laundering to avoid friction with abrasive surfaces.

Use a gentle cycle or hand wash in cold to warm water, and opt for a mild liquid detergent, ideally eco-friendly as it's gentler on fibres. We also suggest line drying in the shade to maintain the fabric's integrity.

Bamboo

The naturally antibacterial, hypoallergenic, and moisture-wicking properties of bamboo keep you feeling cool, dry, and fresh all day long. And with its eco-friendly credentials and silky-smooth texture, this fabric is as kind to the planet as it is to your skin.

Made from 92% Bamboo Rayon 8% Spandex
Ultralight, super soft
Antibacterial, hypoallergenic
Fully breathable
Draws moisture from the body

Italian Mesh

Made from Italian Mesh
Composition: 80% Polyamide 20% Elastane
Ultra light and sensual silky feel
Fully breathable
Flattering, unlined cut for maximum comfort & style
See thru

This fabric can still stretch, they do so in quite a different way. We suggest you stay with the closest size to your actual measurements, and go up a size if you are between the suggested range.

Modal

Made from Modal, a cellulose & synthetic fibre blend derived from beech trees

Composition: 96% Modal 4% Lycra
Ultralight, super soft
Fully breathable
Faster drying than cotton
Draws moisture from the body

This fabric can still stretch, they do so in quite a different way. We suggest you stay with the closest size to your actual measurements, and go up a size if you are between the suggested range.

Nylon Lycra

78% Recycled Nylon 22% Extra Life Lycra®
Great fit and comfort
Extra strength
Outstanding quality
Shape retention
Maximum durability
Fast drying

Polyamide Elastane

Fabric

79% Polyamide 21% Elastane
Premium Italian fabric
Satin-effect with extraordinary brightness
Lightweight - 180 g/m2
Great fit and comfort
Maximum shape retention even after repeated washings
Quick drying

Polyester Lycra

Made from Lycra, a cellulose & synthetic fibre blend derived from beech trees

Composition: 96% Modal 4% Lycra
Ultralight, super soft
Fully breathable
Faster drying than cotton
Draws moisture from the body

This fabric can still stretch, they do so in quite a different way. We suggest you stay with the closest size to your actual measurements, and go up a size if you are between the suggested range.

Sheer

Made from a Sheer, ultra luxury fabric blend

Composition 90% Polyamide (recycled) 10% Elastane
Fabric made in Italy
Breathable and fast drying
Faster drying than cotton
Ultra light and sensual silky feel

This fabric can still stretch, they do so in quite a different way. We suggest you stay with the closest size to your actual measurements, and go up a size if you are between the suggested range.

Supplex® Lycra

Made from Supplex® offering the feel of cotton with the benefits of advanced fibre technology

Composition 92% Supplex® 8% Lycra®
Holds shape after many washings
Fully breathable
Faster drying than cotton
Durable & long lasting
Draws moisture from the body
Colourfast

This fabric can still stretch, they do so in quite a different way. We suggest you stay with the closest size to your actual measurements, and go up a size if you are between the suggested range.

This pouch is a contour fit. Which holds you closer to the body in a contour profile. Perfect for a hard workout, but great for everyday wear too as the most discrete pouch design in the Cocksox range.

Compare the different pouch fits below:

Original Pouch

Lifts the package away from the body for a flattering enhanced profile. The extra room for your boys to breathe will give your day a refreshing lift.

Snug Pouch

All the benefits of the Original Pouch but in a more discrete design. The Snug Pouch gives that same cooling freshness, but the enhancing lift is less pronounced. This style is mainly featured in our swimwear range, giving the support of the Original Pouch without turning too many heads!

Contour Pouch

Holds you closer to the body in a contour profile. Perfect for a hard workout, but great for everyday wear too as the most discrete pouch design in the Cocksox range.

This pouch is a original fit. Which holds you closer to the body in a contour profile. Perfect for a hard workout, but great for everyday wear too as the most discrete pouch design in the Cocksox range.

Compare the different pouch fits below:

Original Pouch

Lifts the package away from the body for a flattering enhanced profile. The extra room for your boys to breathe will give your day a refreshing lift.

Snug Pouch

Contour Pouch

Holds you closer to the body in a contour profile. Perfect for a hard workout, but great for everyday wear too as the most discrete pouch design in the Cocksox range.

This pouch is a snug fit. Which holds you closer to the body in a contour profile. Perfect for a hard workout, but great for everyday wear too as the most discrete pouch design in the Cocksox range.

Compare the different pouch fits below:

Original Pouch

Lifts the package away from the body for a flattering enhanced profile. The extra room for your boys to breathe will give your day a refreshing lift.

Snug Pouch

Contour Pouch

Holds you closer to the body in a contour profile. Perfect for a hard workout, but great for everyday wear too as the most discrete pouch design in the Cocksox range.

Frequently Asked Questions

Choose the CX04 athletic swim brief if you want a secure adjustable drawstring waistband and full rear coverage.