Kids’ Underwear

Order by 10pm for next-day delivery

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 Print Vests (2-14 Yrs)

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

M&S5 Pack Pure Cotton Heart Vests (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&S2 Pack Heatgen™ Thermal Tops (2-14 Yrs)

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

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

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

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

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

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

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

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

M&S2 Pack Non Wired First Bras AA-D

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

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

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

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

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

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

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

M&S2 Pack Non Wired First Bra

M&S7 Pack Cotton with Stretch Floral Knickers (1-16 Yrs)

M&S2 Pack Non Wired First Bra

M&S2 Pack Non Wired First Bra

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

M&S2pk Lilo & Stitch™ Thermal Pyjama Sets (1-16 Yrs)

M&SCotton Blend Spider-Man™ Thermal Set (1-16 Yrs)

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

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

M&S7pk Cotton Rich Plain Crop Top (7-16 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&S10 Pack Pure Cotton Briefs (2-14 Yrs)

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

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

M&S7 Pack Cotton with Stretch Ballerina Knickers (1-10 Yrs)

M&S5 Pack Disney Frozen™ Cotton with Stretch Knickers (2-8 Yrs)

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

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

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

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

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

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

M&S10 Pack Cotton Rich Trunks (5-16 Yrs)

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