Casual Underwear
Boxers, trunks, briefs, the basics done properly make more difference than people realise. We carry men's underwear from M&S, ASOS, and specialist brands in cotton, modal, and performance fabrics. Quality underwear that fits well and holds its shape is worth the slight premium. Compare brands and packs in one place, and use our AI stylist if you want specific recommendations.
Products
394 products
British Boxers
British Boxers Men's Navy Paisley Cotton Dressing Gown
£74.38
Calvin Klein
Calvin Klein Men's Relaxed Trunk 3Pk Black
£44.00
Marks & Spencer
M&S Navy Mix Pure Cotton Boxers
£30.00
British Boxers
British Boxers Men's Bright Blue Paisley Pyjama Set
£71.40
Calvin Klein
Calvin Klein Men's Boxer Brief 3Pk Black
£45.00
Marks & Spencer
M&S Comfort Stretch Longer Length Trunks in Black
£28.00
British Boxers
British Boxers Men's Dark Heather Grey Cotton T-Shirt
£17.26
Calvin Klein
Calvin Klein Men's Micro Stretch Low Rise Trunk 3Pk Black
£37.40
Marks & Spencer
M&S Comfort Woven Boxers in White 5-Pack
£28.00
British Boxers
British Boxers Men's Boat Blue Stripe Pyjama Trousers
£43.99
Calvin Klein
Calvin Klein Men's Relaxed Trunk 3Pk Black/Glacier/Blue Bell
£39.60
Marks & Spencer
M&S Regular Fit Cool & Fresh™ Striped Slips in Blue Mix
£28.00
British Boxers
British Boxers Men's Khaki Relax Jersey Joggers
£32.73
Calvin Klein
Calvin Klein Men's Relaxed Trunk 3Pk Black/White/Grey Heather
£44.00
Marks & Spencer
M&S Cool & Fresh Trunks Pack in Black
£28.00
British Boxers
British Boxers Navy Relax Jersey Joggers
£32.73
Calvin Klein
Calvin Klein Men's Icon Cotton Holiday Trunk Black
£15.00
British Boxers
British Boxers Light Blue Stripe Brushed Cotton Dressing Gown
£79.69
British Boxers
British Boxers Navy Tartan Brushed Cotton Dressing Gown
£53.13
British Boxers
British Boxers Teal Herringbone Brushed Cotton Nightshirt
£84.15
British Boxers
British Boxers Men's Navy Spark Stripe Crisp Cotton Pyjama Set
£68.43
British Boxers
British Boxers Men's Mid Blue Stripe Bamboo Pyjama Set
£17.70
British Boxers
British Boxers Men's Pack of Three Off-White Cotton Trunks
£32.00
British Boxers
British Boxers Men's Royal Regimental Satin Stripe Pyjama Set
£119.00
Showing 264 of 394
Frequently Asked Questions
What is the most comfortable men's underwear style?▾
Boxer briefs (trunks) are the most popular, snug without being restrictive, preventing thigh chafing, working under all clothing. Cotton-modal blends or micro-modal fabric for maximum softness. But it's personal, some prefer loose boxers, others need the support of briefs.
How many pairs of underwear should a man own?▾
Minimum 14 for two weeks of daily changes. A more comfortable rotation is 20-25. Include everyday basics, sports underwear for exercise, and a couple of smarter pairs. Replace anything with stretched waistbands or holes, no excuses.
What fabric is best for men's underwear?▾
Cotton is the classic, breathable, soft, easy to wash. Modal and micro-modal feel silkier with better moisture management. Polyester-elastane for sports. Avoid pure synthetics for everyday as they trap heat. The right fabric makes the difference between underwear you tolerate and underwear you actually prefer.