Men's Briefs

What's in the Men's Briefs Collection

The Mariner Underwear men's briefs collection brings together classic low-rise briefs, high-rise Y-front briefs and a mini brief cut, all built from cotton and cotton-blend fabrics. Every pair lists its fabric and size range on the product page, so you can explore the underwear basics and know what you're buying before it arrives.

Some styles are sold as a single pair, others in packs of two or three. Colours run from solid navy, black, white and grey through to striped detailing and two-tone prints. Each design leans on breathable cotton or a stretch blend, so the everyday comfortable feel holds up whichever pair you select.

Fabric and Material

Most briefs in the range use a mercerised combed cotton jersey, spun from fil d'Ecosse combed cotton for a smooth, durable handle. Mercerising gives the cotton a slight sheen and helps it hold colour and shape wash after wash.

A second group uses fine rib pure cotton, the ribbed cotton found in the brand's open-fly Y-front styles. It has more texture than jersey and a slightly firmer hand.

For stretch, there's a microfibre-elastane blend and a Tencel-elastane blend. Both fit closer to the body than the cotton styles and use a covered waistband instead of a ribbed edge. One pack is woven from organic cotton and elastane, sold as a three-pack in grey, navy and black. A further style uses Supima cotton with a knitted jacquard waistband.

Cut and Fit: Low-Rise, High-Rise and Y-Front

Low-rise briefs sit below the natural waist and are the most common cut in the collection. High-rise briefs sit at or above the waist, in both a closed front and a traditional open-fly Y-front construction. The mini brief is shorter again, giving a snug, supportive fit with minimal coverage at the hip and leg for anyone who prefers a closer, minimal silhouette. All three cuts use the same base fabrics, so the choice comes down to rise and coverage rather than material.

Waistband Styles

Three waistband finishes feature in the collection: a striped elasticated waistband on the fine rib cotton briefs, a covered waistband on the microfibre and Tencel stretch styles, and a knitted jacquard waistband on the Supima cotton pair. Each sits flat and secure against the skin without digging in.

Colours and Multipacks

Solid colours include classic black, navy, white, grey and bordeaux, alongside heathered grey and two-tone combinations such as navy with bordeaux or blue with petrol blue. Several packs pair a striped pattern or a printed brief with a plain colour, so one order covers more than one look.

Multipacks come in twos and threes. The organic cotton three-pack mixes grey, navy and black in one box. Buying a pack of everyday essentials is the easiest way to fill an underwear drawer without picking colours one at a time.

Size Guide

Men's briefs at Mariner Underwear come in a full range of sizes. Most styles run from S to XXL, and a handful of cotton jersey and rib cotton pairs extend to XXXL. The mini brief cut runs from S to XL only, so check the size options on the product page before you order, since the exact range differs pair to pair.

Care Instructions

Machine wash all briefs in the collection at 30 degrees on a gentle cycle. Cotton jersey and rib cotton pairs can be tumble-dried on low. The stretch microfibre and Tencel styles hold their shape and elastane better if you air-dry them instead. Skip fabric softener, it coats the fibres and reduces stretch recovery over time, so following the care label keeps each pair comfortable all day, wash after wash.

Briefs, Trunks or Boxer Shorts

A brief is the shortest cut Mariner Underwear makes, sitting close to the body with minimal leg coverage. For more coverage through the thigh, the men's boxer shorts range offers a longer, brief-cut short in cotton stretch and organic cotton. The men's trunks underwear collection sits between the two, with a square-cut leg and a snugger fit than a boxer short. For a bamboo-blend fabric in a longer cut, the men's bamboo underwear range is worth a look. Browse the men's underwear range or shop men's briefs online at Mariner Underwear to find the cut and fabric that suits you.

Frequently Asked Questions

What are men's briefs made of at Mariner Underwear?

The collection uses several cotton fabrics: mercerised combed cotton jersey, fine rib pure cotton, and organic cotton with elastane. Two styles use stretch blends instead, a microfibre-elastane blend and a Tencel-elastane blend. Check the individual product page for the exact fabric of each pair.

Are Mariner Underwear briefs classic or Y-front style?

Both. The high-rise open styles use a traditional Y-front construction with a front opening, while the low-rise and high-rise closed styles are classic briefs without an opening. The mini brief is a shorter, closer cut again.

What sizes do men's briefs come in?

Most styles run from S to XXL, and several extend to XXXL. The low rise brief cut runs from S to XL. Sizing varies by style, so check the size options on each product page before ordering.

Do men's briefs come in multipacks?

Yes. Several styles are sold in packs of two, and one organic cotton style comes as a three-pack in grey, navy and black. Other pairs, including the rib cotton and Supima cotton styles, are sold individually.

How do I wash men's briefs?

Machine wash at 30 degrees. Cotton jersey and rib cotton pairs can be tumble-dried on low. Air-dry the microfibre and Tencel stretch styles to protect the elastane, and skip fabric softener on any of them.

What's the difference between briefs, trunks and boxer shorts?

Briefs are the shortest cut, sitting close to the body with minimal leg coverage. Trunks have a square-cut leg and sit between briefs and boxer shorts in coverage. Boxer shorts are the longest cut in the range, with more fabric through the thigh.

What colours do men's briefs come in?

Solid navy, black, white, grey and bordeaux are the base colours, plus heathered grey and two-tone combinations such as navy with bordeaux or blue with petrol blue. Several multipacks pair a striped or printed brief with a plain colour.