Your Cart

Add a note for the seller…

£0

total cart value

Continue Shopping

Free domestic shipping on orders over £50
  • New
  • Clothing
  • Formal
  • Accessories
  • Gifts
  • Journal
  • About Us
  • Log in
  • Create Account
  •
  • 0
  • New
    • Limited Editions
    • Winter Woollen Wonders
  • Clothing

    • Outerwear

      • Nehru Jackets
      • Nehru Waistcoats
      • Jackets
      • Gilets

    • Tops

      • T-Shirts
      • Polo Shirts
      • Cuban Shirts
      • Grandad Shirts
      • Collared Shirts
      • Knitwear

    • Trousers

      • Casual Trousers & Shorts
      • Formal Trousers

    • Underwear & Nightwear

      • Boxers
      • Socks
      • Pyjamas
      • Dressing Gowns
    • SIRPLUS

      Summer Shirts

  • Formal
    • Single Breasted Waistcoats
    • Double Breasted Waistcoats
    • Formal Trousers
    • Ties
  • Accessories
    • Bags
    • Ties
    • Gift Cards
  • Gifts
    • Everyday Style
    • Accessories
    • Party Dressing
    • Underwear & Nightwear
    • All Gifts
  • Journal
  • About Us
    • Our Story
    • Stores
    • Careers
Our stores are now open again! Please note: Princes Arcade will stay closed for now.
Free Next Working Day Delivery On orders over £50
  • Our stores are now open again! Please note: Princes Arcade will stay closed for now.
  • Free Next Working Day Delivery On orders over £50
Underwear & Nightwear

Underwear & Nightwear

The cornerstone of good dressing is good underwear. SIRPLUS everyday essentials in cotton, wool and cashmere.
Together Locks Print Boxer Shorts - Made with Liberty Fabric
Together Locks Print Boxer Shorts - Made with Liberty Fabric, Boxers - SIRPLUS
S M L XL
Together Locks Print Boxer Shorts - Made with Liberty Fabric
£35
Little Love Print Boxer Shorts - Made with Liberty Fabric
Little Love Print Boxer Shorts - Made with Liberty Fabric, Boxers - SIRPLUS
S M L XL
Little Love Print Boxer Shorts - Made with Liberty Fabric
£35
Debonair Ties Print Boxer Shorts - Made with Liberty Fabric
Debonair Ties Print Boxer Shorts - Made with Liberty Fabric, Boxers - SIRPLUS
S M L XL
Debonair Ties Print Boxer Shorts - Made with Liberty Fabric
£35
River Print Boxers - Made With Liberty Fabric
River Print Boxers - Made With Liberty Fabric
£35
Navy Whitby Stripe Boxer
Navy Whitby Stripe Boxer, Boxers - SIRPLUS
S M L XL
Navy Whitby Stripe Boxer
£25
Pink Brighton Rock Boxers
Pink Brighton Rock Boxers, Boxers - SIRPLUS
S M L XL
Pink Brighton Rock Boxers
£25
Pale Pink Rib Dress Socks
Pale Pink Rib Dress Socks
£12
Navy Stripe Bamboo Socks
Navy Stripe Bamboo Socks
£8
Blue Hampstead Stripe Boxers
Blue Hampstead Stripe Boxers, Boxers - SIRPLUS
S M L XL
Blue Hampstead Stripe Boxers
£25
Navy Over The Calf Dress Socks
Navy Over The Calf Dress Socks
£16
Blue Thick Rib Cotton Socks
Blue Thick Rib Cotton Socks
£12
Sold Out
Yellow Thick Rib Cotton Socks
Yellow Thick Rib Cotton Socks
£12
Navy Salcombe Stripe Boxers
Navy Salcombe Stripe Boxers, Boxers - SIRPLUS
S M L XL
Navy Salcombe Stripe Boxers
£25
Charcoal Over The Calf Dress Socks
Charcoal Over The Calf Dress Socks
£16
Black Boxer Briefs
Black Boxer Briefs, Boxers - SIRPLUS
S M L XL
Black Boxer Briefs
£20
Navy Boxer Briefs
Navy Boxer Briefs, Boxers - SIRPLUS
S M L XL
Navy Boxer Briefs
£20
Grand Tour Print Boxers - Made With Liberty Fabric
Grand Tour Print Boxers - Made With Liberty Fabric, Boxers - SIRPLUS
S M L XL
Grand Tour Print Boxers - Made With Liberty Fabric
£35
Navy Check Cotton Socks
Navy Check Cotton Socks
£12
White Boxer Briefs
White Boxer Briefs, Boxers - SIRPLUS
S M L XL
White Boxer Briefs
£20
Navy Dot Cotton Boxers
Navy Dot Cotton Boxers
£25
Pink Pinstripe Boxer
Pink Pinstripe Boxer, Boxers - SIRPLUS
S M L XL
Pink Pinstripe Boxer
£25
Red Cedar Stripe Boxer
Red Cedar Stripe Boxer, Boxers - SIRPLUS
S M L XL
Red Cedar Stripe Boxer
£25
Pale Pink Organic Cotton Dress Socks
Pale Pink Organic Cotton Dress Socks
£12
River Print Pj Trousers - Made With Liberty Fabric
River Print Pj Trousers - Made With Liberty Fabric, Pyjamas - SIRPLUS
S M L XL
River Print Pj Trousers - Made With Liberty Fabric
£95
  • Previous
  • Page 1 of 2
  • Next

Stores

  • Portobello
  • Islington
  • Princes Arcade
  • King's Road
  • Marylebone

Info

  • Contact Us
  • Delivery & Returns
  • Sizing
  • FAQ
  • Wishlist
  • Security & Privacy
  • Careers
  • Klarna

Join our Mailing List

Sign up to receive 10% off your first order.

Social Networks

  • Request a catalogue
  • Subscribe

© 2020 SIRPLUS | Powered by Shopify | Designed by WeTheme

    American Express Apple Pay Google Pay Klarna Maestro Mastercard PayPal Shop Pay Visa
Popup

Use this popup to embed a mailing list sign up form. Offer incentives to customers to join and build your mailing list.

Popup

Use this popup to embed a mailing list sign up form. Offer incentives to customers to join and build your mailing list.

x