Colour: Navy
Trunk - Black in Black
Trunk - White in White
Trunk - Navy in Navy
  • Free delivery over $100

  • Free 100-day returns and express refunds

  • We price match, and carbon offset deliveries

Product details

Brand: Hamilton & Hare

Category: Socks & Underwear > Fitted trunks

Colour: Navy


Our seamless bamboo fibre trunk was designed with absolute comfort in mind. Using technology usually reserved for professional athletes, the seamfree construction moulds to your individual body shape for a perfect fit. The bamboo fabric is lightweight, silky soft and breathable too. Without seams or labels there is no irritation or rubbing and the fabric is natural hypoallergenic and antibacterial. COMFORT The compact construction of the knitting process means a smooth touch, and the slim waistband never feels too tight or too light. The fabric has four-way stretch allowing for total freedom of movement without the need to readjust. SEAMLESS The seamfree construction moulds to your individual body shape for a perfect fit that you can hardly feel on your body. Without seams or labels there is no risk of chafing or irritation. LESS WASTE The seamless technology has allowed for an extremely efficient knitting process that generates significantly less waste than traditional cut and sew methods. Bamboo is a natural fibre and one of the most renewable resources on the planet thanks to its fast growth and natural replenishment. It's also biodegradable too. FABRIC 85% bamboo viscose, 10% polyamide, 5% elastane
Shipping & returns
  • Standard Delivery

    Delivery to any US address using FedEx or UPS. Usually takes 3-6 business days.

    Free for orders over $100, or $7.99.

    All import duties paid.

  • Express Delivery

    Order before 5AM Wednesday for delivery to a US home address. Usually takes 3 business days.

    Just $11.99.

    Note: all items in the order must qualify for the service

  • Free returns

    Once your order is dispatched we’ll email you instructions for making a return.

  • 100 day returns period

    Measured from the date you receive the box to the date you hand it back to a returns partner. Read our full returns policy here.


We’re working hard to make it easier to shop sustainably.

  • Planting a tree for every order

    For every order made on our site, we’ll plant a tree that will capture 20kgs of CO2 per year.

  • Carbon-neutral deliveries

    We carbon offset your delivery and return shipping.

  • Sustainability filter

    Easily shop sustainable items and brands by using our convenient sustainability filter. Head to our ‘Shop’ tab, then click ‘Filter’ to locate it.

Our friendly support team

Need help? Contact our team

We aim to respond to all emails within two hours


Dress better in three minutes

Great style is about to get much simpler


About the brand

Hamilton & Hare

There’s underwear, and then there’s Hamilton & Hare underwear. The UK brand believes that your undies should be more than an afterthought, so it whips up its boxers and briefs in the softest natural fibres, using innovative constructions for the perfect fit. It gets better: the label has extended its range to include loungewear and travel wear (think relaxed blazers and shirts) with the same level of comfort.




You can expect to find sustainable fibres, such as bamboo and lyocell (a material that’s made from eucalyptus wood pulp and known for its silk-like softness), throughout the collection. The brand also uses seamless technology in selected garments, which helps to reduce the amount of waste during production.


Popular items