Kids’ Underwear

Our kids’ underwear department has easy, practical shapes cut from top-quality fabrics that are made to last. Shop our selections of boys’ underwear and girls’ underwear to find their preferred styles in handy multi-packs. Our kids’ trunks and girls’ knicker shorts give a neat and comfy wear, while our boys’ briefs and girls’ knickers are ideal if they like a lighter feel. We also have girls’ crop tops that provide gentle support for developing bodies. When it comes to colourways, our kids’ underwear in black, grey, white and cream hues are good plain staples. If they prefer undies with a splash of colour, you’ll also find primary brights alongside soft pastel tones.

When the colder weather arrives, our girls’ and boys’ thermal underwear helps them beat the chill. Insulating fibres and cosy brushed finishes help retain their body’s natural warmth for protection without bulk. Choose girls’ and boys’ vests for snugness round their core, or opt for long-sleeved tops that give added coverage. For their bottom half, we have an assortment of tights and long johns. Add in some kids’ socks for toasty toes, and they’re all set.

Get them ready for a night of sweet dreams with our new season’s collection of kids’ nightwear. We have short and long pairs to suit the season, in an assortment of colours so they can find their favourite. Look out for kids’ multi-packs of nightwear so they can mix and match their bedtime attire. Why not treat them to a cosy dressing gown for lounging?

Kids’ Underwear

M&S5 Pack Pure Cotton Heart Vests (2-14 Yrs)

M&S5 Pack Pure Cotton Heart Print Vests (2-14 Yrs)

M&S2 Pack Non Wired First Bra

M&S2 Pack Heatgen™ Thermal Leggings (2-14 Yrs)

M&S2 Pack Heatgen™ Thermal Top (2-14 Yrs)

M&S2 Pack Heatgen™ Thermal Top (2-14 Yrs)

M&S2 Pack Heatgen™ Thermal Vests (2-14 Yrs)

M&S5 Pack Cotton Rich Football Trunks (5-16 Yrs)

M&S2 Pack Heatgen™ Thermal Tops (2-14 Yrs)

M&S2 Pack Non Wired First Bras AA-D

M&S10 Pack Cotton with Stretch Knickers (2-14 Yrs)

M&S10 Pack Cotton with Stretch Pink Heart Knickers (2-14 Yrs)

M&S5 Pack Pure Cotton Bow Vests (2-14 Yrs)

M&S5 Pack Pure Cotton Vests (2-14 Yrs)

M&S5 Pack Cotton with Stretch Trunks (5-16 Yrs)

M&S5 Pack Pure Cotton Vests (2-14 Yrs)

M&S5 Pack Pure Cotton Vests (2-14 Yrs)

M&S7 Pack Cotton With Stretch Ballerina Knickers (18 Mths - 10 Yrs)

M&S7 Pack Cotton with Stretch Stars Shorts (5-16 Yrs)

M&S2 Pack Non Wired First Bra

M&S2 Pack Non Wired Cotton Rich Ribbed First Bras AA-D

M&S2 Pack Non Wired First Bra

M&S7 Pack Cotton Rich Floral Knickers (18 Mths - 16 Yrs)

M&S5 Pack Cotton Rich Trunks (5-16 Yrs)

M&S2 Pack Heatgen™ Thermal Top (2-14 Yrs)

M&S5 Pack Cotton Rich Novelty Trunks (5-16 Yrs)

M&S2 Pack Heatgen™ Thermal Leggings (2-14 Yrs)

M&S10 Pack Pure Cotton Briefs (2-14 Yrs)

M&S2 Pack Non Wired Cotton Rich Ribbed First Bras AA-D

M&S5 Pack Cotton Rich Trunks (5-16 Yrs)

M&S5 Pack Cotton Rich Camis (2-14 Yrs)

M&S3 Pack Cotton with Stretch Racer Crop Tops (6-16 Yrs)

M&S7 Pack Cotton with Stretch Heart Shorts (5-16 Yrs)

M&S5 Pack Pure Cotton Spider-Man™ Briefs (18 Mths - 8 Yrs)

M&S2 Pack Cotton with Stretch Woven Crop Tops (7-16 Yrs)

M&S5 Pack Cotton Rich Camo Trunks (5-16 Yrs)

M&S5pc Cotton with Stretch Bright Trunks (5-16 Yrs)

M&S7 Pack Cotton with Stretch Animal Knickers (1-14 Yrs)

M&S5 Pack Cotton Rich Bluey™ Knickers (2-8 Yrs)

M&S2 Pack Heatgen™ Thermal Tops (2-14 Yrs)

M&S5 Pack Disney Princess™ Cotton with Stretch Knickers (18 Mths-8 Yrs)

M&S3 Pack Pure Cotton Long Sleeve Vests (2-14 Yrs)

M&S7 Pack Pure Cotton Camo Briefs (1-16 Yrs)

M&S7 Pack Cotton Rich Horse Knickers (18 Months-16 Yrs)

M&S5pk Cotton Rich Slogan Crop Top (7-16 Yrs)

M&S7 Pack Pure Cotton Novelty Briefs (1-10 Yrs)

M&S5 Pack Cotton Rich Dinosaur Trunks (1-10 Yrs)

M&S2 Pack Non Wired First Bras AA-D