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Kids' Underwear

Colourful knickers and pants, socks and tights, vests and crop tops all feature in our collection of kids’ underwear. Our styles come in a variety of prints, patterns and colours. We even have seam-free options for sports and active days, while many items are cotton-rich, enhanced with a little added stretch for comfort or thermal technology for cosiness

  • Gender with 4 options
  • Style with 13 options
  • Kids Sizes with 57 options
  • Colour with 9 options

There are 158 Items found

5pk of Knee High Socks
£6 - £7
M&S Collection

5pk of Knee High Socks

From £1.20 per item

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

7pk of Ankle School Socks

£1 per item

5pk of Knee High Pelerine Socks
£7 - £8
M&S Collection

5pk of Knee High Pelerine Socks

From £1.40 per item

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

5pk of Short Picot Socks
£5 - £6
M&S Collection

5pk of Short Picot Socks

From £1 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)

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

3pk of Ultimate Comfort Socks

From £1.67 per item

3pk of School Tights (2-16 Yrs)
£7 - £8
M&S Collection

3pk of School Tights (2-16 Yrs)

From £2.33 per item

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

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

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

3pk of Ultimate Comfort Socks

From £1.67 per item

7pk Cotton Rich Assorted Shorts (5-16 Yrs)
£9.50
M&S Collection

7pk Cotton Rich Assorted Shorts (5-16 Yrs)

Ultimate Support Non Wired Sports First Bra AA-D
£12
M&S Collection

Ultimate Support Non Wired Sports First Bra AA-D

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

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

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

5pk of Ribbed School Socks

From £1 per item

7pk Pure Cotton Unicorn Knickers (2-12 Yrs)
£9.50
M&S Collection

7pk Pure Cotton Unicorn Knickers (2-12 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 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

3pk of School Tights (2-16 Yrs)
£7 - £8
M&S Collection

3pk of School Tights (2-16 Yrs)

From £2.33 per item

5pk of Knee High Socks
£6 - £7
M&S Collection

5pk of Knee High Socks

From £1.20 per item

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

7pk of Ankle School Socks

£1 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

10pk Cotton Rich Heart Knickers (2-14 Yrs)
£9.50
M&S Collection

10pk Cotton Rich Heart Knickers (2-14 Yrs)

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

5pk Pure Cotton Vests (2-14 Yrs)

£1.90 per item

5pk of Knee High Socks
£6 - £7
M&S Collection

5pk of Knee High Socks

From £1.20 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 of Knee High Socks
£6 - £7
M&S Collection

5pk of Knee High Socks

From £1.20 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

10pk Cotton Rich Knickers (2-14 Yrs)
£8.50
M&S Collection

10pk Cotton Rich Knickers (2-14 Yrs)

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

5pk Cotton Rich Trunks (5-16 Yrs)

£1.90 per item

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

5pc Cotton Rich Trunks (5-16 Yrs)

3pk Cotton Rich Knickers (6-16 Yrs)
£8
M&S Collection

3pk Cotton Rich Knickers (6-16 Yrs)

Ultimate Support Non Wired Sports First Bra AA-D
£12
M&S Collection

Ultimate Support Non Wired Sports First Bra AA-D

7pk Cotton Rich Striped & Stars Shorts (5-16 Yrs)
£10.50 - £11.50
M&S Collection

7pk Cotton Rich Striped & Stars Shorts (5-16 Yrs)

3pk of School Tights (2-16 Yrs)
£7 - £8
M&S Collection

3pk of School Tights (2-16 Yrs)

From £2.33 per item

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

5pk of Ribbed School Socks

From £1 per item

5pk of Frill Trainer Liners™
£6 - £7
M&S Collection

5pk of Frill Trainer Liners™

From £1 per item

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

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

£1.90 per item

10pk Cotton Rich Knickers (2-14 Yrs)
£9.50
M&S Collection

10pk Cotton Rich Knickers (2-14 Yrs)

3pk of Body Sensor™ School Tights (2-16 Yrs)
£10 - £11
M&S Collection

3pk of Body Sensor™ School Tights (2-16 Yrs)

From £3.33 per item

10pk Cotton Rich Star Knickers (2-14 Yrs)
£9.50
M&S Collection

10pk Cotton Rich Star Knickers (2-14 Yrs)

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

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

5pk Pure Cotton Disney Princess™ Knickers (2-10 Yrs)
£9.50 - £10.50
M&S Collection

5pk Pure Cotton Disney Princess™ Knickers (2-10 Yrs)

From £2.10 per item

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

7pk of Cotton Rich Trainer Liners™

£0.86 per item

7pk Cotton Rich Shorts (5-16 Yrs)
£8.50
M&S Collection

7pk Cotton Rich Shorts (5-16 Yrs)

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

10pk Pure Cotton Briefs (2-14 Yrs)

7pk Pure Cotton Animal Briefs (2-10 Yrs)
£9.50
M&S Collection

7pk Pure Cotton Animal Briefs (2-10 Yrs)

From £1.35 per item

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