CLAIM15 — 15% OFF YOUR FIRST ORDER FREE UK SHIPPING — EVERY ORDER 365-DAY RETURNS INTERNATIONAL — £2.99 FLAT DISPATCHED FROM HULL, UK CLAIM15 — 15% OFF YOUR FIRST ORDER FREE UK SHIPPING — EVERY ORDER 365-DAY RETURNS INTERNATIONAL — £2.99 FLAT DISPATCHED FROM HULL, UK CLAIM15 — 15% OFF YOUR FIRST ORDER FREE UK SHIPPING — EVERY ORDER 365-DAY RETURNS INTERNATIONAL — £2.99 FLAT DISPATCHED FROM HULL, UK
Confident editorial portrait featuring the Foundation Boxer Brief on a soft cream bouclé sofa — premium menswear underwear campaignFolded black heavyweight cotton Foundation Boxer Brief on a dark walnut desk alongside a folded white tee, steel watch and espresso cup — editorial menswear morning ritualEditorial morning portrait of a man fastening his steel watch wearing the Foundation Boxer Brief with an open white linen shirt draped at his shoulders — premium menswear lifestyleA man's hand pulls a folded black Foundation Boxer Brief from an open walnut dresser drawer in soft golden morning light — premium menswear morning ritual lifestyleTop-down editorial of six folded black heavyweight cotton Foundation Boxer Briefs fanned on a dark walnut surface — premium menswear 6-pack value revealTop-down macro of three folded black heavyweight cotton Foundation Boxer Briefs stacked on a warm-cream backdrop — premium menswear product photographyStudio product shot of a single black heavyweight cotton Foundation Boxer Brief lying flat on an off-white backdrop — Adler Sterling menswear catalogueStudio product shot of a single grey heavyweight cotton Foundation Boxer Brief lying flat on an off-white backdrop — Adler Sterling menswear catalogue colour variantExtreme macro detail of thick black heavyweight cotton jersey weave on the Adler Sterling Foundation Boxer Brief — premium menswear material proof
BESTSELLER
/ THE WEAR EDIT

Foundation Boxer Brief — 6 Pack

£35£4827%
Color: Black1 colour

Or 3 interest-free payments of £11.67 with Klarna.

Free UK shipping

5-8 days

365-day returns

No questions

Hull, UK

Independent

Vendor Adler Sterling
Type Underwear
Material 100% cotton
Ships from Hull, UK + partner network
Delivery Free UK · 5-8 days

Six. All black. All cotton. The Foundation Boxer Brief comes in a six-pack so you stop thinking about underwear — soft, breathable, no riding, no sagging.

Specs

  • Fabric: 95% cotton, 5% elastane
  • Cut: classic boxer brief
  • Sizes: S–XL
  • Six-pack, all black
  • Flatlock seams
  • Branded waistband

Claim what's yours.

Folded black heavyweight cotton Foundation Boxer Brief on a dark walnut desk alongside a folded white tee, steel watch and espresso cup — editorial menswear morning ritual
Editorial morning portrait of a man fastening his steel watch wearing the Foundation Boxer Brief with an open white linen shirt draped at his shoulders — premium menswear lifestyle
A man's hand pulls a folded black Foundation Boxer Brief from an open walnut dresser drawer in soft golden morning light — premium menswear morning ritual lifestyle
/ THE DETAIL
01.

The Build

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Designed in the UK, manufactured by certified partner specialists. Every piece earns its place by answering a single question — is this something a man taking care of himself would put against his skin?

02.

The Materials

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We prioritise natural fibres because the materials we wear daily matter more than most men think. Cotton against the skin. Linen that breathes. Stainless steel that lasts. Silk for sleep. Glass over plastic.

03.

The Story

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Adler Sterling exists for men who reject the diminishment quietly, deliberately, daily. Cleaner inputs. Stronger outputs. Take care of yourself. The daily standard, claimed.

04.

The Care

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Designed to be lived in for years, not seasons. Specific care instructions on the inside label of every piece. When in doubt: cool wash, hang to dry, iron on low.

05.

Shipping & Returns

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UK: Free tracked delivery, 5-8 business days.
International: £2.99 flat tracked, 7-15 business days.
Returns: 365 days, no questions, free UK return label.

"Claim what's yours."

— ADLER STERLING / DROP 01