Boys Swimming Jammers

Discover comfort and performance with our boys' briefs and jammers. Tailored for young swimmers, these pieces offer a snug fit, ensuring effortless movement in the water. With a blend of style and function, they're ideal for both casual swims and competitive events.
134 items
New lower price
NABAIJI Girls' long-sleeved swimsuit - UV Combiswim 100 - Pink Purple
NABAIJI
Girls' long-sleeved swimsuit - UV Combiswim 100 - Pink Purple
£17.99
Was £19.99
(288)
New lower price
NABAIJI Girls’ swimming shorty suit 100 - pink
NABAIJI
Girls’ swimming shorty suit 100 - pink
£13.99
Was £16.99
(509)
New lower price
NABAIJI Boys’ Swimming Jammer Fitib Black / Bright Red / Turquoise
NABAIJI
Boys’ Swimming Jammer Fitib Black / Bright Red / Turquoise
£14.99
Was £16.99
5 colours
(1374)
NABAIJI Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
NABAIJI
Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
£19.99
(303)
NABAIJI Boy's Wetsuit - Shorty 100 Short Sleeve - Navy Blue / Blue
NABAIJI
Boy's Wetsuit - Shorty 100 Short Sleeve - Navy Blue / Blue
£16.99
(588)
New lower price
NABAIJI Kloupi Girls' Swim Shorty - Purple Pink
NABAIJI
Kloupi Girls' Swim Shorty - Purple Pink
£16.99
Was £18.99
(111)
New lower price
NABAIJI Boys' Wetsuit - Shorty 100 Long-Sleeved - Two-tone Blue
NABAIJI
Boys' Wetsuit - Shorty 100 Long-Sleeved - Two-tone Blue
£16.99
Was £18.99
(118)
New lower price
NABAIJI Boys' Swimming Suit - Shorty 100 Kloupi - Blue Red
NABAIJI
Boys' Swimming Suit - Shorty 100 Kloupi - Blue Red
£16.99
Was £18.99
(419)
New lower price
NABAIJI Boys' swimming shorts - 100 dark blue
NABAIJI
Boys' swimming shorts - 100 dark blue
£5.99
Was £7.99
2 colours
(489)
New lower price
NABAIJI Boys' swimming shorts - 100 blue
NABAIJI
Boys' swimming shorts - 100 blue
£5.99
Was £7.99
2 colours
(489)
NABAIJI Boy’s swimming jammer swimsuit - 500 Fitib black mesh white
NABAIJI
Boy’s swimming jammer swimsuit - 500 Fitib black mesh white
£13.99
5 colours
(1374)
New lower price
NABAIJI Boys’ Swimming Jammer Fitib Black / Neon yellow
NABAIJI
Boys’ Swimming Jammer Fitib Black / Neon yellow
£14.99
Was £16.99
5 colours
(1374)
New lower price
NABAIJI BOYS’ SWIMMING JAMMER FINA 900
NABAIJI
BOYS’ SWIMMING JAMMER FINA 900
£44.99
Was £54.99
(2)
Last chance
SPEEDO BOY'S SWIMMING BOXERS SPEEDO - BLUE PRINT
SPEEDO
BOY'S SWIMMING BOXERS SPEEDO - BLUE PRINT
£9.99
£18.9947% off
(87)
Last chance
ARENA Kid's Swimming Briefs ARENA SKULL Black
ARENA
Kid's Swimming Briefs ARENA SKULL Black
£9.99
£14.9933% off
(10)
Last chance
NABAIJI Boy’s Swimming Jammer-Fitib shark Black Yellow
NABAIJI
Boy’s Swimming Jammer-Fitib shark Black Yellow
£13.99
£16.9917% off
5 colours
(1374)
Online only
SPEEDO ECO Endurance+ Junior Male Swimming Jammer
SPEEDO
ECO Endurance+ Junior Male Swimming Jammer
£19.00
(1)
Sold and shipped by SPEEDO INTERNATIONAL LIMITED
NABAIJI Boys' Swimming Swim Trunks 100 Basic - Navy Blue
NABAIJI
Boys' Swimming Swim Trunks 100 Basic - Navy Blue
£4.99
(196)
Last chance
NABAIJI Swimming trunks 900 briefs all ice blue orange
NABAIJI
Swimming trunks 900 briefs all ice blue orange
£13.99
4 colours
(65)
Online only
ADIDAS 3-Stripes C-Back Swimsuit Kids
ADIDAS
3-Stripes C-Back Swimsuit Kids
£25.00
2 colours
(1)
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
Online only
REGATTA Kids Skander Swim Shorts
REGATTA
Kids Skander Swim Shorts
£11.00
£20.0044% off
6 colours
Sold and shipped by Regatta & Dare2B UK
Online only
KONFIDENCE Konfidence Splashy™ Swimsuit Made With e-Flex™
KONFIDENCE
Konfidence Splashy™ Swimsuit Made With e-Flex™
£19.99
£19.99/unit
6 colours
Sold and shipped by Konfidence
Online only
REGATTA Kids Skander Swim Shorts
REGATTA
Kids Skander Swim Shorts
£11.00
£20.0044% off
6 colours
Sold and shipped by Regatta & Dare2B UK
Online only
SPEEDO Speedo Boys Endurance Plus Jammer - Black
SPEEDO
Speedo Boys Endurance Plus Jammer - Black
£19.80
£20.905% off
Sold and shipped by theSwimmingShop
Online only
KONFIDENCE Konfidence Warma™ Swimsuit Made With e-Flex™
KONFIDENCE
Konfidence Warma™ Swimsuit Made With e-Flex™
£21.99
£26.9918% off
£21.99/unit
3 colours
Sold and shipped by Konfidence
NABAIJI Boys’ swimming trunks - 900 Yoke blue yellow
NABAIJI
Boys’ swimming trunks - 900 Yoke blue yellow
£8.99
4 colours
(134)
Online only
SPEEDO Speedo Boys Endurance+ Jammer - True Navy
SPEEDO
Speedo Boys Endurance+ Jammer - True Navy
£19.00
2 colours
(1)
Sold and shipped by SPEEDO INTERNATIONAL LIMITED
NABAIJI Boys’ swimming trunks - 900 Yoke black green
NABAIJI
Boys’ swimming trunks - 900 Yoke black green
£6.99
4 colours
(134)
WATKO Boy’s water polo trunks - 500 Shark dark blue and turquoise
WATKO
Boy’s water polo trunks - 500 Shark dark blue and turquoise
£9.99
4 colours
(42)
Last chance
WATKO BOYS’ WATER POLO SWIM BRIEFS - SHARK GREEN
WATKO
BOYS’ WATER POLO SWIM BRIEFS - SHARK GREEN
£12.99
4 colours
(42)
Last chance
NABAIJI SQUARE-CUT BRIEFS 900 ALL CELO ORANGE
NABAIJI
SQUARE-CUT BRIEFS 900 ALL CELO ORANGE
£11.99
£13.9914% off
4 colours
(65)
Online only
ARENA Arena Boys Team Solid Swim Jammer - Red/White
ARENA
Arena Boys Team Solid Swim Jammer - Red/White
£19.80
£25.3021% off
£19.80/unit
3 colours
Sold and shipped by theSwimmingShop
Online only
SPEEDO Speedo Tots Boys Digi Allover Jammer - Navy
SPEEDO
Speedo Tots Boys Digi Allover Jammer - Navy
£11.00
£13.7520% off
Sold and shipped by theSwimmingShop
Online only
ZONE3 Swim Brief Shorts Men's KONA SPEED Black
ZONE3
Swim Brief Shorts Men's KONA SPEED Black
From £7.50
£28.0073% off
Sold and shipped by ZONE3 LTD
Online only
ARENA Arena Boys Team Solid Swim Jammer - Red/White
ARENA
Arena Boys Team Solid Swim Jammer - Red/White
£19.80
£25.3021% off
£19.80/unit
(1)
Sold and shipped by theSwimmingShop
Last chance
NABAIJI Swimming trunks square-cut briefs 900 koli green
NABAIJI
Swimming trunks square-cut briefs 900 koli green
£5.99
£13.9957% off
4 colours
(65)
Online only
FUNKY TRUNKS Funky Trunks Boys Baby Beamer Swim Training Jammer - Black/Multi
FUNKY TRUNKS
Funky Trunks Boys Baby Beamer Swim Training Jammer - Black/Multi
£38.45
Sold and shipped by theSwimmingShop
Online only
ZOGGS Zoggs Boys Mako Mid Swim Jammer - Navy/Green
ZOGGS
Zoggs Boys Mako Mid Swim Jammer - Navy/Green
£27.50
Sold and shipped by theSwimmingShop
Online only
ARENA Arena Boys Team Solid Swim Jammer - Royal/White
ARENA
Arena Boys Team Solid Swim Jammer - Royal/White
£19.80
£25.3021% off
2 colours
Sold and shipped by theSwimmingShop
Last chance
NABAIJI Boys’ Swimming Trunks Yokob Dark Blue / Neon Green
NABAIJI
Boys’ Swimming Trunks Yokob Dark Blue / Neon Green
£6.99
£10.9936% off
2 colours
(637)
4.6/5 based on 13069 reviews collected online and in stores

Preparing for a family trip to the seaside? Ensure your little ones have added coverage with our boys' swimming jammers from Decathlon. Designed for freedom of movement, these jammers are made of stretchy materials that enhance performance and comfort, letting your child enjoy the trip to its fullest.

Complete your swimming pool essentials list and browse our range of pool shoesandswimming towels here.

Boys’ Jammers Swimming Shorts 

Our boys’ jammers swimming shorts are made from a form-fitting design to help minimise drag. For more performance-boosting alternatives, opt for jammers fitted with built-in compression to support blood circulation and keep muscle fatigue at bay. If your kids are newly getting into swimming, our boys’ jammers swimming shorts are perfect for beginners while enjoying more protection from the sun. 

Looking for more options? Check out our boys swimming trunksandboys swim shorts & board shorts. 

Boys Swimming Jammers | Decathlon