Skip to content
HelpFind a store

Free delivery when you spend £60
Free returns for online orders
Free store collection

Boys' Underwear

3 FOR 2

on selected boys' clothing
  • Product Type with 5 options
  • Kids Sizes with 20 options
  • Multipack with 6 options

There are 71 Items found

10pk Cotton With Stretch Trunks (5–16 Yrs)
New
£19.50 - £20.50
M&S Collection

10pk Cotton With Stretch Trunks (5–16 Yrs)

7pk Cotton Rich Bright Trunks (5-16 Yrs)
New
£14.50 - £15.50
M&S Collection

7pk Cotton Rich Bright Trunks (5-16 Yrs)

5pk Cotton With Stretch Checkerboard Trunks (5–16 Yrs)
New
£11.50 - £12.50
M&S Collection

5pk Cotton With Stretch Checkerboard Trunks (5–16 Yrs)

7pk Pure Cotton Dinosaur Briefs (2-8 Yrs)
New
£9.50
M&S Collection

7pk Pure Cotton Dinosaur Briefs (2-8 Yrs)

5pk Cotton With Stretch Dinosaur Animal Trunks (3–8 Yrs)
New
£11.50 - £12.50
M&S Collection

5pk Cotton With Stretch Dinosaur Animal Trunks (3–8 Yrs)

7pk Cotton Rich Stripe Waistband Trunks (5-16 Yrs)
New
£14.50 - £15.50
M&S Collection

7pk Cotton Rich Stripe Waistband Trunks (5-16 Yrs)

5pk Cotton with Stretch Trunks (5-16 Years)
£9.50
M&S Collection

5pk Cotton with Stretch Trunks (5-16 Years)

5pk Cotton Rich Coloured Waistband Trunks (5-16 Yrs)
£9.50
M&S Collection

5pk Cotton Rich Coloured Waistband Trunks (5-16 Yrs)

5pk Cotton with Stretch Gaming Trunks (5-16 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton with Stretch Gaming Trunks (5-16 Yrs)

5pc Cotton Rich Trunks (5-16 Yrs)
£9.50
M&S Collection

5pc Cotton Rich Trunks (5-16 Yrs)

5pk Cotton Rich Plain Trunks (2-16 Yrs)
£9.50
M&S Collection

5pk Cotton Rich Plain Trunks (2-16 Yrs)

5pk Cotton Rich Shark Trunks (3-16 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Shark Trunks (3-16 Yrs)

From £2.30 per item

5pk Cotton Rich Camo Trunks (5 - 16 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Camo Trunks (5 - 16 Yrs)

From £2.30 per item

5pk Cotton Rich Bright Trunks (5-16 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Bright Trunks (5-16 Yrs)

5pk Cotton Rich Koala Trunks (3-8 Yrs)
New
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Koala Trunks (3-8 Yrs)

5pk Cotton Rich Striped Trunks (5-16 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Striped Trunks (5-16 Yrs)

5pk Pure Cotton Vests (2-14 Yrs)
£9.50
M&S Collection

5pk Pure Cotton Vests (2-14 Yrs)

£1.90 per item

3pk Cotton Rich with Lycra® Trunks (6-16 Yrs)
£10
M&S Collection

3pk Cotton Rich with Lycra® Trunks (6-16 Yrs)

£3.33 per item

5pk Cotton Rich Football Trunks (5-12 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Football Trunks (5-12 Yrs)

5pk Cotton Rich Plain Trunks (5-16 Yrs)
£8.50
M&S Collection

5pk Cotton Rich Plain Trunks (5-16 Yrs)

5pk Pure Cotton Vests (2-14 Yrs)
£9.50
M&S Collection

5pk Pure Cotton Vests (2-14 Yrs)

£1.90 per item

10pk Pure Cotton Briefs (2-14 Yrs)
£9.50
M&S Collection

10pk Pure Cotton Briefs (2-14 Yrs)

5pk Cotton Rich Trunks (5-16 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Trunks (5-16 Yrs)

4pk Pure Cotton Short Sleeve Vests (2-14 Yrs)
£9.50
M&S Collection

4pk Pure Cotton Short Sleeve Vests (2-14 Yrs)

£2.38 per item

10pk Pure Cotton Briefs (2-14 Yrs)
£9.50
M&S Collection

10pk Pure Cotton Briefs (2-14 Yrs)

7pk Pure Cotton Transport Briefs (2-8 Years)
£9.50
M&S Collection

7pk Pure Cotton Transport Briefs (2-8 Years)

5pk Cotton with Stretch Graffiti Trunks (5-16 yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton with Stretch Graffiti Trunks (5-16 yrs)

5pk Pure Cotton Vests (2-14 Yrs)
£9.50
M&S Collection

5pk Pure Cotton Vests (2-14 Yrs)

£1.90 per item

2pk Heatgen™ Thermal Vests (2-14 Yrs)
£12 - £13
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £6 per item

10pk Pure Cotton Briefs (2-14 Years)
£8.50
M&S Collection

10pk Pure Cotton Briefs (2-14 Years)

7pk Pure Cotton Sea Life Briefs (18 Mths-7 Yrs)
£9.50
M&S Collection

7pk Pure Cotton Sea Life Briefs (18 Mths-7 Yrs)

From £1.36 per item

5pk Cotton Rich Trunks (8-16 yrs)
Online Only
£30
JACK & JONES JUNIOR

5pk Cotton Rich Trunks (8-16 yrs)

5pk Cotton Rich Bolt Trunks (5-16 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Bolt Trunks (5-16 Yrs)

From £2.30 per item

3pk Pure Cotton Long Sleeve Vests (2-14 Yrs)
£9.50
M&S Collection

3pk Pure Cotton Long Sleeve Vests (2-14 Yrs)

£3.17 per item

7pk Pure Cotton Animal Briefs (2-8 Years)
£9.50
M&S Collection

7pk Pure Cotton Animal Briefs (2-8 Years)

2pk Heatgen™ Thermal Vests (2-14 Yrs)
£12 - £13
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £6 per item

2pk Heatgen™ Thermal Short Sleeve Vests (2-14 Yrs)
£11 - £12
M&S Collection

2pk Heatgen™ Thermal Short Sleeve Vests (2-14 Yrs)

From £5.50 per item

10pk Pure Cotton Briefs (2-14 Yrs)
£9.50
M&S Collection

10pk Pure Cotton Briefs (2-14 Yrs)

5pk Pure Cotton Spider-Man™ Briefs (2-8 Yrs)
£9.50
M&S Collection

5pk Pure Cotton Spider-Man™ Briefs (2-8 Yrs)

Heatgen™ Thermal Long Johns (2-14 Yrs)
£8 - £9
M&S Collection

Heatgen™ Thermal Long Johns (2-14 Yrs)

£9 per item

7pk Pure Cotton Space Briefs (2-8 Yrs)
£9.50
M&S Collection

7pk Pure Cotton Space Briefs (2-8 Yrs)

2pk Heatgen™ Thermal Vests (2-14 Yrs)
£10 - £11
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £5 per item

10pk Pure Cotton Briefs (2-14 Yrs)
£9.50
M&S Collection

10pk Pure Cotton Briefs (2-14 Yrs)

10pk Pure Cotton Star Briefs (2-8 Yrs)
£11.50
M&S Collection

10pk Pure Cotton Star Briefs (2-8 Yrs)

Wave Print Rash Vest (6-16 Yrs)
3 for 2
£12
M&S Collection

Wave Print Rash Vest (6-16 Yrs)

5pk Cotton Rich Trunks (2-16 Yrs)
£9.50
M&S Collection

5pk Cotton Rich Trunks (2-16 Yrs)

£1.90 per item

5pk Pure Cotton Cars™ Briefs (2-10 Yrs)
£9.50 - £10.50
M&S Collection

5pk Pure Cotton Cars™ Briefs (2-10 Yrs)

2pk Heatgen™ Thermal Vests (2-14 Yrs)
£12 - £13
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £6 per item

Page 1 of 2