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Men's Plain Bamboo Trunks 3 Pack - Soft, Breathable Stretch Fit | Spairs

(157) Read Reviews
£10.99

Only £3.66 Per Pair!

Man wearing plain white bamboo fitted trunk underwear Man wearing plain navy bamboo fitted trunk underwear Close-up of black bamboo boxers for men Three pack of men's bamboo trunks in black, navy and white colours Three pairs of men's bamboo trunks underwear in white Eco-friendly cardboard shipping box for men's socks and underwear Men's bamboo underwear being delivered through a letterbox in recyclable packaging
Man wearing plain white bamboo fitted trunk underwear Man wearing plain navy bamboo fitted trunk underwear Close-up of black bamboo boxers for men Three pack of men's bamboo trunks in black, navy and white colours Three pairs of men's bamboo trunks underwear in white Eco-friendly cardboard shipping box for men's socks and underwear Men's bamboo underwear being delivered through a letterbox in recyclable packaging

Men's Plain Bamboo Trunks 3 Pack - Soft, Breathable Stretch Fit | Spairs

(157) Read Reviews
£10.99

Only £3.66 Per Pair!

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- Currently out of stock

Popular item - sells out fast. Get notified when it's back.

Save 10% when you buy 2 or more packs
  • Free UK Delivery On All Orders.
  • Lower cost per pack when you multibuy.
  • 3-pair multipack - stay well-stocked.
  • Fitted bamboo trunks with no-fly front.
  • 7cm leg inseam for a modern, supportive fit.
  • Ultra-soft bamboo - breathable stretch fit.
  • No-dig waistband and tag-free comfort.
  • Delivered straight through your letterbox* No more waiting in or missed deliveries!

Stay fresh, cool, and comfortable all day with these Men’s Plain Bamboo Fitted Trunks, available in great-value 3-pair packs. Designed with a regular rise and a supportive stretch fit, they’re built for everyday wear and active days alike.

Looking to upgrade your Men's Bamboo Trunks? Made from a soft, smooth bamboo-rich blend, these trunks feature 7cm leg length inseams that allow complete freedom of movement without riding up. Bamboo’s natural breathable, antibacterial, temperature-regulating, and moisture-absorbing properties help keep you feeling cooler, drier, and fresher throughout the day.

Comfort details are dialled in where it matters most. A soft brushed elasticated waistband, tag-free printed care label, and smooth anti-chafe overlocked seams deliver irritation-free wear, whether you’re at the gym or getting through a long day.

Reliable, supportive, and easy to wear, our Men's Underwear is perfect for upgrading your everyday essentials or creating a practical gift set he’ll actually use. Finished with free UK delivery straight through your letterbox - no missed parcels, no waiting around.

Find the perfect underwear fit for you. Explore our Underwear Types Guide.

Top it off with socks so soft, they’ll steal the show. Check out All Men's Socks now.

Machine washable at 40°. No need to tumble dry - they'll dry super fast by themselves. Made in China: 95% Viscose from Bamboo, 5% Elastane.

Spairs offers free 48hr tracked delivery to any UK address as standard, or choose to upgrade to 24hr tracked delivery from just 99p! Royal Mail are our chosen courier and you can expect to receive your order in 2 working days including Saturdays. Find more delivery info here.

*Our individual pack shipping boxes are designed to fit through a standard UK letterbox, meaning quick and easy, hassle free delivery. Find out more here.

We've worked hard to make our recyclable card shipping boxes as eco-friendly as possible. By removing all paper inserts from our innovative product packaging, which also serves as our shipping box; we've reduced postage costs, packing materials and wastage too!

Sorry - we can't take back underwear that has been worn, unpackaged or opened unless the item is faulty.

PLAIN DESIGN ECO-FRIENDLY ULTRA-SOFT BAMBOO FITTED SILHOUETTE SOFT, BRUSHED WAISTBAND TAGLESS CARE LABEL VALUE 3 PACK PLAIN DESIGN ECO-FRIENDLY ULTRA-SOFT BAMBOO FITTED SILHOUETTE SOFT, BRUSHED WAISTBAND TAGLESS CARE LABEL VALUE 3 PACK

Soft, Breathable Bamboo Trunks

Our amazingly soft, eco-friendly, breathable bamboo fabric not only feels luxurious against your skin but also fights odours and ensures you stay cooler, drier and fresher.

Man wearing bright blue coloured bamboo fitted trunk underwear
Close-up of men's bamboo boxer-shorts in black, white and navy

Total Comfort. All Day Long

No itchy labels! Our amazing, tagless, printed care labels and soft, brushed waistbands provide amazing all day comfort with zero irritation.

Better Value With Multibuy

Most customers add 2 or more packs.

Why stop at one? Build your basket properly.

• Lower cost per pack
• Fewer repeat orders
• One delivery. Sorted.

Add any 2 or more packs and unlock 10% off automatically.

What Our Customers Say...
4.8/5
Independent Feedback based on 157 verified reviews.
Trusted Customer
Wednesday, 29 October 2025

The underpants are very nice fitting lovely to the touch and I thought of reasonable price However, they are a little bit like Lycra and have no absorbent properties and I’m not sure if I wouldn’t have been better buying cotton

Craig Meadows
Saturday, 26 July 2025

2 of the 3 boxers were ripped.

Trusted Customer
Wednesday, 14 August 2024

Not any different to any other underwear. Expected more of a tighter fit but item was loose.

Trusted Customer
Thursday, 08 August 2024

Disappointed in sizing and thickness of material. Ok for the price, especially if wanting to try out bamboo boxers.

Trusted Customer
Friday, 07 June 2024

Quality?

Men's Bamboo Trunks FAQs

It’s simple. Pick any 2 or more multipacks from our range of everyday essentials, add them to your basket, and mix and match as you like. Your 10% saving is applied automatically at checkout - no codes needed. Plus, free UK delivery is included with every order.

Find out more about our Men's Multibuy and Women's Multibuy offers here.

Socks and underwear wear out at roughly the same pace. Replacing single pairs creates a mix of old and new that never feels consistent. Buying them together resets your drawer in one go - same fit, same comfort, every day.

Larger packs also mean fewer orders, fewer deliveries and less time re-buying basics. You stock up once and you’re sorted for months.

At Spairs, our socks and underwear are sold in sensible multipacks so you can stock up once and save more over time. It’s the easiest way to stay stocked up while spending less. Browse all our multipack Men's Socks and Women's Socks offers here. 

Looking for even more everyday comfort and value? Shop multipack Men's Underwear and Women's Underwear.

Bamboo Underwear is generally softer, more breathable, and better at moisture-wicking compared to Cotton Underwear and other synthetic alternatives. Bamboo fibers naturally regulate temperature, helping you feel cooler in the summer and warmer in the winter. They are also naturally hypoallergenic and antibacterial which helps prevent odour build up and provides all-day freshness, making bamboo boxer shorts suitable for people with diabetes, eczema, or sensitive skin.

 

Keyhole Boxer Shorts feature a longer leg length compared to trunk briefs, typically extending halfway down the thigh. This longer leg length helps prevent thigh chafing and offers a more secure fit. This style is particularly beneficial for those who prefer additional coverage and comfort reducing any chance the leg seams will 'ride up'.

Fitted Trunks are known for their shorter legs and snug fit. They have a low to mid rise (where they sit on the waist) and provide a sleek, modern look with a fitted silhouette. The shorter leg length means less fabric, which can be ideal for wearing under tighter pants or jeans.

Both Men's Underwear styles offer unique benefits, ensuring that you can find the perfect pair to suit your lifestyle. Better still our men's underwear is available in a choice of fabrics.

You should choose your usual waist size in inches. Our tagless Bamboo Trunks run true-to-size and are designed with superior stretch for comfort and wearability.

A detailed Men's Bamboo Trunks Size Guide can be found at the top of this page or on our Size Guide page.

 

Whatever the season our 5 Packs of Men's Trainer Socks and Women's Trainer Socks are sure to become your new favourite Spairs. Made from a sustainable, luxurious bamboo rich blend these quality, super-soft Trainer Socks feature elasticated arch supports to stop the socks 'slipping' keeping them securely in place all day long. 

Looking for the perfect everyday crew sock? Our much-loved gentle hold, comfort cuffs mean Spairs Men's Bamboo Socks and Women's Bamboo Socks won’t constrict or pinch the leg as they hold up without pressure.

Knitted using our amazingly soft, midweight, bamboo and cotton blend, our Men's Bamboo T-Shirts and Women's Bamboo T-Shirts will keep you cool and dry throughout the day. 

Browse the full Men's Socks and Women's Socks ranges here.

That's right! Spairs offers free 48hr tracked delivery to any UK address with every order. Or choose to upgrade to 24hr tracked delivery from just 99p.

Check out our Delivery Info.