Boys’ Underwear
Our boys’ underwear collection is packed with practical choices. Trunks and briefs come in handy multi-packs and are crafted in cotton-rich fabrics to be gentle on young skin. Fun character motifs will appeal to tots, while crisp stripes and cool camouflage patterns are ideal for older kids. Choose thermal vests for chilly-day layering, and enjoy free delivery over €50
M&S Collection5pk Pure Cotton Vests (2-14 Yrs)
Current Price
€13M&S Collection5pk Pure Cotton Vests (2-14 Yrs)
€2.60 per itemAverage rating: 4.71 out of 5
- M&S Collection
2pk Heatgen™ Thermal Vests (2-14 Yrs)
Current Price
€16 - €17.50M&S Collection2pk Heatgen™ Thermal Vests (2-14 Yrs)
Extra warmthAverage rating: 4.97 out of 5
- M&S Collection
3pk Pure Cotton Long Sleeve Vests (2-14 Yrs)
Current Price
€13M&S Collection3pk Pure Cotton Long Sleeve Vests (2-14 Yrs)
Average rating: 4.67 out of 5
- M&S Collection
4pk Pure Cotton Short Sleeve Vests (2-14 Yrs)
Current Price
€13M&S Collection4pk Pure Cotton Short Sleeve Vests (2-14 Yrs)
Average rating: 4.36 out of 5
- M&S Collection
2pk Heatgen™ Thermal Vests (2-14 Yrs)
Current Price
€16 - €17.50M&S Collection2pk Heatgen™ Thermal Vests (2-14 Yrs)
Extra warmth2 colours availableAverage rating: 4.8 out of 5
- M&S Collection
5pk Cotton Rich Camo Trunks (5 - 16 Yrs)
Current Price
€16 - €17M&S Collection5pk Cotton Rich Camo Trunks (5 - 16 Yrs)
Average rating: 4.1 out of 5
- M&S Collection
5pk Pure Cotton Vests (2-14 Yrs)
Current Price
€13M&S Collection5pk Pure Cotton Vests (2-14 Yrs)
Average rating: 4.55 out of 5
- M&S Collection
3pk Cotton Rich with Lycra® Trunks (6-16 Yrs)
Current Price
€13.50M&S Collection3pk Cotton Rich with Lycra® Trunks (6-16 Yrs)
Average rating: 4.76 out of 5
- M&S Collection
5pk Pure Cotton Vests (2-14 Yrs)
Current Price
€13M&S Collection5pk Pure Cotton Vests (2-14 Yrs)
€2.60 per itemAverage rating: 4.74 out of 5
- M&S Collection
2pk Heatgen™ Thermal Short Sleeve Vests (2-14 Yrs)
Current Price
€15 - €16M&S Collection2pk Heatgen™ Thermal Short Sleeve Vests (2-14 Yrs)
Extra warmthAverage rating: 5.0 out of 5
- M&S Collection
5pk Cotton with Stretch Trunks (5-16 Yrs)
Current Price
€13M&S Collection5pk Cotton with Stretch Trunks (5-16 Yrs)
Average rating: 4.75 out of 5
- NewNewM&S Collection
5pk Pure Cotton Spider-Man™ Briefs (2-8 Yrs)
Current Price
€13M&S Collection5pk Pure Cotton Spider-Man™ Briefs (2-8 Yrs)
Average rating: 5.0 out of 5
New - M&S Collection
3pk Cotton Rich With Stretch Plain Trunks (6-16 Yrs)
Current Price
€13.50M&S Collection3pk Cotton Rich With Stretch Plain Trunks (6-16 Yrs)
Average rating: 4.52 out of 5
- M&S Collection
2pk Heatgen™ Thermal Vests (2-14 Yrs)
Current Price
€13.50 - €15M&S Collection2pk Heatgen™ Thermal Vests (2-14 Yrs)
Extra warmthAverage rating: 4.89 out of 5
- M&S Collection
Heatgen™ Thermal The Mandalorian™ Set (4-14 Yrs)
Current Price
€20 - €23M&S CollectionHeatgen™ Thermal The Mandalorian™ Set (4-14 Yrs)
Average rating: 4.67 out of 5
- M&S Collection
5pk Cotton Rich Design Waistband Trunks (5-16 Yrs)
Current Price
€16 - €17M&S Collection5pk Cotton Rich Design Waistband Trunks (5-16 Yrs)
Average rating: 4.83 out of 5
- M&S Collection
7pk Pure Cotton Sea Life Briefs (18 Mths-7 Yrs)
Current Price
€13M&S Collection7pk Pure Cotton Sea Life Briefs (18 Mths-7 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
5pk Cotton Rich Trunks (5-16 Yrs)
Current Price
€13M&S Collection5pk Cotton Rich Trunks (5-16 Yrs)
Average rating: 4.57 out of 5
- M&S Collection
7pk Pure Cotton Dinosaur Briefs (2-10 Yrs)
Current Price
€13M&S Collection7pk Pure Cotton Dinosaur Briefs (2-10 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
10pk Pure Cotton Briefs (2-16 Yrs)
Current Price
€13M&S Collection10pk Pure Cotton Briefs (2-16 Yrs)
€1.30 per itemAverage rating: 4.55 out of 5
- M&S Collection
3pk Cotton Rich with Stretch Plain Trunks (6-16 Yrs)
Current Price
€13.50M&S Collection3pk Cotton Rich with Stretch Plain Trunks (6-16 Yrs)
Average rating: 4.88 out of 5
5pk Cotton Rich Shark Trunks (3-16 Yrs)
Current Price
€16 - €175pk Cotton Rich Shark Trunks (3-16 Yrs)
Average rating: 4.56 out of 5
- M&S Collection
Heatgen™ Thermal Dinosaur Bottoms (2-14 Yrs)
Current Price
€12 - €13.50M&S CollectionHeatgen™ Thermal Dinosaur Bottoms (2-14 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
10pk Pure Cotton Briefs (2-14 Yrs)
Current Price
€13M&S Collection10pk Pure Cotton Briefs (2-14 Yrs)
Average rating: 4.67 out of 5
- M&S Collection
5pk Cotton Rich Trunks (2-16 Yrs)
Current Price
€13M&S Collection5pk Cotton Rich Trunks (2-16 Yrs)
Average rating: 4.29 out of 5
- M&S Collection
2pk Heatgen™ Thermal Vests (2-14 Yrs)
Current Price
€13.50 - €15M&S Collection2pk Heatgen™ Thermal Vests (2-14 Yrs)
Everyday warmthAverage rating: 4.75 out of 5
- M&S Collection
7pk Pure Cotton Dinosaur Briefs (2-10 Yrs)
Current Price
€13M&S Collection7pk Pure Cotton Dinosaur Briefs (2-10 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
7pk Pure Cotton Forest Print Briefs (2-10 Yrs)
Current Price
€13M&S Collection7pk Pure Cotton Forest Print Briefs (2-10 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
7pk Pure Cotton Animal Briefs (2-10 Yrs)
Current Price
€13M&S Collection7pk Pure Cotton Animal Briefs (2-10 Yrs)
Average rating: 4.62 out of 5
- M&S Collection
7pk Pure Cotton Striped Star Briefs (2-8 Yrs)
Current Price
€13M&S Collection7pk Pure Cotton Striped Star Briefs (2-8 Yrs)
Average rating: 3.0 out of 5
- M&S Collection
10pk Pure Cotton Briefs (2-14 Yrs)
Current Price
€13M&S Collection10pk Pure Cotton Briefs (2-14 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
2pk Heatgen™ Thermal Dinosaur Tops (2-14 Yrs)
Current Price
€17.50 - €19M&S Collection2pk Heatgen™ Thermal Dinosaur Tops (2-14 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
3pk Cotton Rich Marvel™ Trunks (3-16 Yrs)
Current Price
€16 - €17M&S Collection3pk Cotton Rich Marvel™ Trunks (3-16 Yrs)
Average rating: 5.0 out of 5
- M&S Collection
7pk Pure Cotton Football Briefs (2-14 Yrs)
Current Price
€13 - €14M&S Collection7pk Pure Cotton Football Briefs (2-14 Yrs)
Average rating: 4.72 out of 5
- Online OnlyOnline OnlyJACK & JONES JUNIOR
5pk Cotton Rich Trunks (8-16 Yrs)
Current Price
€32JACK & JONES JUNIOR5pk Cotton Rich Trunks (8-16 Yrs)
Average rating: 5.0 out of 5
Online Only 7pk Pure Cotton Days of the Week Briefs (18 Mths-7 Yrs)
Current Price
€137pk Pure Cotton Days of the Week Briefs (18 Mths-7 Yrs)
Average rating: 3.0 out of 5
- M&S Collection
2pk Heatgen™ Thermal Vests (2-14 Yrs)
Current Price
€16 - €17.50M&S Collection2pk Heatgen™ Thermal Vests (2-14 Yrs)
Extra warmth2 colours availableAverage rating: 4.8 out of 5
- M&S Collection
Heatgen™ Thermal Leggings (2-14 Yrs)
Current Price
€11 - €12M&S CollectionHeatgen™ Thermal Leggings (2-14 Yrs)
4 colours availableAverage rating: 4.56 out of 5
- M&S Collection
2pk Heatgen™ Thermal Long Sleeve Vests (2-14 Yrs)
Current Price
€16 - €17.50M&S Collection2pk Heatgen™ Thermal Long Sleeve Vests (2-14 Yrs)
Extra warmth2 colours availableAverage rating: 4.97 out of 5
- M&S Collection
Heatgen™ Thermal Leggings (2-14 Yrs)
Current Price
€11 - €12M&S CollectionHeatgen™ Thermal Leggings (2-14 Yrs)
4 colours availableAverage rating: 4.56 out of 5
- M&S Collection
10pk Pure Cotton Briefs (2-14 Yrs)
Current Price
€13M&S Collection10pk Pure Cotton Briefs (2-14 Yrs)
Average rating: 4.67 out of 5