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  • for faster checkout
  • to unlock personalised Sparks offers
  • to access order history and track deliveries

Boys' Underwear

Our collection of boys’ underwear includes all the essentials needed for a new term. Alongside briefs, trunks and vests, you’ll find socks in uniform-friendly colours such as grey, black and navy. We’ve got everyday ankle-length pairs as well as PE-ready choices with cushioned soles. Make sure they’re kitted out from weekdays to weekends with one of our handy multi-packs

3 FOR 2

on selected boys' clothing

  • Product Type with 5 options
  • Kids Sizes with 17 options
  • Colour with 8 options
  • Multipack with 9 options

There are 74 Items found

  • 5pk Cotton Rich Trunks (2-16 Yrs) image 1
  • 5pk Cotton Rich Trunks (2-16 Yrs) image 2
£9.50
M&S Collection

5pk Cotton Rich Trunks (2-16 Yrs)

£1.90 per item

5pk Pure Cotton Vests (2-14 Yrs) image 1
£9.50
M&S Collection

5pk Pure Cotton Vests (2-14 Yrs)

£1.90 per item

2pk Boys' Heatgen™ Thermal Vests (2-16 Yrs) image 1
£11 - £12
M&S Collection

2pk Boys' Heatgen™ Thermal Vests (2-16 Yrs)

Everyday warmth

5pk Cotton Rich Bolt Trunks (5-16 Yrs) image 1
£11.50 - £12.50
M&S Collection

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

From £2.30 per item

2pk Heatgen™ Thermal Vests (2-14 Yrs) image 1
£12 - £13
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £6 per item

3pk Cotton Rich With Stretch Plain Trunks (6-16 Yrs) image 1
£10
M&S Collection

3pk Cotton Rich With Stretch Plain Trunks (6-16 Yrs)

£3.33 per item

Heatgen™ Thermal Long Johns (2-14 Yrs) image 1
£8 - £9
M&S Collection

Heatgen™ Thermal Long Johns (2-14 Yrs)

£9 per item

2pk Heatgen™ Thermal Vests (2-14 Yrs) image 1
£12 - £13
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £6 per item

5pk Pure Cotton Vests (2-14 Yrs) image 1
£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) image 1
£10
M&S Collection

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

£3.33 per item

5pk Cotton Rich Camo Trunks (5 - 16 Yrs) image 1
£11.50 - £12.50
M&S Collection

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

From £2.30 per item

5pk Pure Cotton Vests (2-14 Yrs) image 1
£9.50
M&S Collection

5pk Pure Cotton Vests (2-14 Yrs)

£1.90 per item

3pk Cotton Rich with Stretch Plain Trunks (6-16 Yrs) image 1
£10
M&S Collection

3pk Cotton Rich with Stretch Plain Trunks (6-16 Yrs)

£3.33 per item

Time for that extra layer?

Shop boys' thermals
Content card Time for that extra layer? 26th September 2023
2pk Heatgen™ Thermal Vests (2-14 Yrs) image 1
£10 - £11
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

Everyday warmth

4pk Pure Cotton Short Sleeve Vests (2-14 Yrs) image 1
£9.50
M&S Collection

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

£2.38 per item

  • 5pk Cotton Rich Trunks (5-16 Yrs) image 1
  • 5pk Cotton Rich Trunks (5-16 Yrs) image 2
£9.50
M&S Collection

5pk Cotton Rich Trunks (5-16 Yrs)

£1.90 per item

  • 3pk Cotton Rich Star Wars™ Trunks (5-16 Yrs) image 1
  • 3pk Cotton Rich Star Wars™ Trunks (5-16 Yrs) image 2
£11.50 - £12.50
M&S Collection

3pk Cotton Rich Star Wars™ Trunks (5-16 Yrs)

5pk Cotton Rich Trunks image 1
£11.50 - £12.50
M&S Collection

5pk Cotton Rich Trunks

From £2.30 per item

  • 5pk Cotton with Stretch Striped Trunks (5-16 Yrs) image 1
  • 5pk Cotton with Stretch Striped Trunks (5-16 Yrs) image 2
£11.50 - £12.50
M&S Collection

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

5pk Cotton Rich Design Waistband Trunks (5-16 Yrs) image 1
£11.50 - £12.50
M&S Collection

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

From £2.30 per item

2pk Heatgen™ Thermal Vests (2-14 Yrs) image 1
£10 - £11
M&S Collection

2pk Heatgen™ Thermal Vests (2-14 Yrs)

From £5 per item

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