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Boys’ Underwear

Our collection of boys’ underwear has all the essentials you’ll need to get stocked up. Multi-packs of stretchy trunks or briefs have everyday dressing covered. We’ve also got cotton-rich socks featuring our nifty Freshfeet technology that fends off odours. In cooler weather, keep him feeling cosy in our soft thermal long johns or long-sleeved vests

(1 applied)
  • Boys
  • Gender with 4 options
  • Style with 6 options
  • Kids Sizes with 21 options
  • Colour with 7 options
  • Boys

There are 76 Items found

7pk of Ankle School Socks
£7
M&S Collection

7pk of Ankle School Socks

£1 per item

7pk of Ankle School Socks
£7
M&S Collection

7pk of Ankle School Socks

£1 per item

3pk of Ultimate Comfort Socks
£5 - £6
M&S Collection

3pk of Ultimate Comfort Socks

From £1.67 per item

3pk of Ultimate Comfort Socks
£5 - £6
M&S Collection

3pk of Ultimate Comfort Socks

From £1.67 per item

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)

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

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

5pk of Ribbed School Socks
£5 - £6
M&S Collection

5pk of Ribbed School Socks

From £1 per item

7pk of Ankle School Socks
£7
M&S Collection

7pk of Ankle School Socks

£1 per item

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

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

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

5pk Cotton Rich Plain Trunks (2-16 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

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

5pk Pure Cotton Vests (2-14 Yrs)

£1.90 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

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

5pc Cotton Rich Trunks (5-16 Yrs)

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

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

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

10pk Pure Cotton Briefs (2-14 Yrs)

5pk of Ribbed School Socks
£5 - £6
M&S Collection

5pk of Ribbed School Socks

From £1 per item

7pk of Cotton Rich Trainer Liners™
£6
M&S Collection

7pk of Cotton Rich Trainer Liners™

£0.86 per item

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

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

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

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

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

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

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

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

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

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

7pk of Cotton Rich Trainer Liners™
£6
M&S Collection

7pk of Cotton Rich Trainer Liners™

£0.86 per item

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

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

From £2.30 per item

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

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

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

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

7pk Pure Cotton Transport 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

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

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)

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

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)

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

10pk Pure Cotton Briefs (2-14 Yrs)

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

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £5 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 Trunks (5-16 Yrs)
New
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Trunks (5-16 Yrs)

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

3pk Cotton with Stretch Trunks (8-16 Yrs)
Online Only
£22
JACK & JONES JUNIOR

3pk Cotton with Stretch Trunks (8-16 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)

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

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £6 per item

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

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

7pk Pure Cotton Days Of The Week Briefs (2-8 Years)
£9.50
M&S Collection

7pk Pure Cotton Days Of The Week Briefs (2-8 Years)

5pk Cotton with Stretch Dinosaur Trunks (5-12 Yrs)
£11.50 - £12.50
M&S Collection

5pk Cotton with Stretch Dinosaur Trunks (5-12 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)

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