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© 2025 Republic.Com Retail Ltd

Republic.Com Retail Ltd (FRN: 979366), trading as ‘USC’, is an appointed representative of Frasers Group Credit Broking Limited (FRN: 947961) who are authorised and regulated by the Financial Conduct Authority as a credit broker not a lender. Frasers Plus is a credit product provided by Frasers Group Financial Services Limited (FRN: 311908) and is subject to your financial circumstances. Missed payments may affect your credit score. For regulated payment services, Frasers Group Financial Services Limited is a payment agent of Transact Payments Limited, a company authorised and regulated by the Gibraltar Financial Services Commission as an electronic money institution.

/Home/Kids/Kids Clothing/Kids' Underwear/Boys

Boys' Underwear

Replenish your little one's drawers with the boy's underwear range. Discover an assortment of boxers and trunks with signature tape detailing for a high-end touch. Refresh their essentials with boy's underwear sets from <a href="/calvin-klein">Calvin Klein</a> in classic white and black colourways. Opt for bright hues with the <a href="/tommy-hilfiger">Tommy Hilfiger</a> range with blue and red tones and logo-emblazoned style for instant designer recognition. Browse printed pieces to elevate his undies collection with a selection of styles to choose from this season. For wardrobe essentials for your little one check out our latest boy's underwear collection.
All Kids' Underwear
Boys' Shirts
Boys' Coats & Jackets
Boys' Tracksuits
Boys' Shorts
Boys' Joggers
Boys' Jumpers
Boys' Jeans
Boys' Hoodies & Sweatshirts
88 Products
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UP TO 80% OFF

Lyle and Scott 3 Pack Trunks Jn99

Lyle and Scott

3 Pack Trunks Jn99

£5.00£24.99

UP TO 70% OFF

Lyle and Scott 3P Eagle Trunks Jn99

Lyle and Scott

3P Eagle Trunks Jn99

£8.00£24.99

Calvin Klein 2 Pack AOP Boxer Shorts

Calvin Klein

2 Pack AOP Boxer Shorts

£20.00£24.00

UP TO 50% OFF

Tommy Hilfiger 2 Pack Boxer Shorts

Tommy Hilfiger

2 Pack Boxer Shorts

£9.00£21.99

Lyle and Scott 3 Pack Core Trunks Juniors

Lyle and Scott

3 Pack Core Trunks Juniors

£16.00£20.00

Lyle and Scott 3 Pack Core Trunks Juniors

Lyle and Scott

3 Pack Core Trunks Juniors

£16.00£20.00

Calvin Klein Jeans 2PK TRUNK

Calvin Klein Jeans

2PK TRUNK

£19.00£27.00

Calvin Klein Jeans 2PK TRUNKCalvin Klein Jeans 2PK TRUNK £19.00Tommy Hilfiger 3P TRUNKTommy Hilfiger 3P TRUNK £19.00Lyle and Scott 5 Pack TrunksLyle and Scott 5 Pack Trunks £24.00Lyle and Scott 3 Pack Core Trunk JuniorsLyle and Scott 3 Pack Core Trunk Juniors £14.00Tommy Hilfiger 7 PK TRUNK PRINTTommy Hilfiger 7 PK TRUNK PRINT £49.00Polo Ralph Lauren 3 Pack Boxer Shorts JuniorsPolo Ralph Lauren 3 Pack Boxer Shorts Juniors £28.00Tommy Hilfiger Tommy 2 Pack Logo Boxer ShortsTommy Hilfiger Tommy 2 Pack Logo Boxer Shorts £16.00Gant 3 Pack Boxer ShortsGant 3 Pack Boxer Shorts £18.00Jack and Jones Sense Trunk 3 Pack InfantsJack and Jones Sense Trunk 3 Pack Infants £12.99Jack and Jones Simple Trunks 5 Pack JuniorsJack and Jones Simple Trunks 5 Pack Juniors £21.99Jack and Jones Oliver Trunk 5 Pack Boxers JuniorsJack and Jones Oliver Trunk 5 Pack Boxers Juniors £21.99Jack and Jones Trunk 3-PackJack and Jones Trunk 3-Pack £15.99Jack and Jones Trunk 3-PackJack and Jones Trunk 3-Pack £15.99Jack and Jones Trunk 3-PackJack and Jones Trunk 3-Pack £15.99Jack and Jones Waistband Logo Trunka 3 Pack JuniorsJack and Jones Waistband Logo Trunka 3 Pack Juniors £15.99Jack and Jones Trunk 3-Pack JuniorJack and Jones Trunk 3-Pack Junior £17.99Boss Logo Boxers JuniorsBoss Logo Boxers Juniors £17.00Polo Ralph Lauren 5 Pack BoxersPolo Ralph Lauren 5 Pack Boxers £48.00Lyle and Scott 3Pk Trunks Jn99Lyle and Scott 3Pk Trunks Jn99 £8.00Boss Boss 2 Pack Boxers JuniorsBoss Boss 2 Pack Boxers Juniors £20.00Boss Boss 2 Pack Boxers JuniorsBoss Boss 2 Pack Boxers Juniors £28.00

Buy now. Pay later. Earn rewards

Representative APR: 29.9% (variable) Credit subject to status. Terms apply.
Missed payments may affect your credit score.
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