Swimwear & Beachwear

Sun, sand and swimsuits for little ones
125 items
NABAIJI GIRLS' 1P SWIMSUIT VEGA SHORTY PINK
NABAIJI GIRLS' 1P SWIMSUIT VEGA SHORTY BLUE
Gallery item 1 out of 2
NABAIJI GIRLS' 1P SWIMSUIT VEGA SHORTY PINK
2 colors
£12.99
NABAIJI Shorty swimming suit - pink
NABAIJI Swimming Wetsuit Shorty Swim Navy
Gallery item 1 out of 2
NABAIJI Shorty swimming suit - pink
Rate: 4.6 stars, 102 votes
2 colors
£16.99
NABAIJI Girls' 1-piece swimsuit shorty Kamyleon black
NABAIJI Girls' 1-piece swimsuit shorty Kamyleon black
£19.99
NABAIJI Girls' long-sleeved swimsuit - UV Combiswim 100 - Pink Purple
NABAIJI Girls' long-sleeved swimsuit - UV Combiswim 100 - Pink Purple
£19.99
NABAIJI Boys' Swimming Suit - Shorty 100 Kloupi - Blue Red
NABAIJI Boys' Swimming Suit - Shorty 100 Kloupi - Blue Red
Rate: 4.6 stars, 273 votes
£18.99
OLAIAN BOY'S SURFING WETSUIT 500 4/3 MM VORTEX BLACK
OLAIAN BOY'S SURFING WETSUIT 500 4/3 MM VORTEX BLACK
£79.99
Was £99.99
OLAIAN Kid's anti-UV sun top red
OLAIAN Kid's anti-UV sun top yellow
OLAIAN Kid's anti-UV sun top blue turquoise
OLAIAN Kids' UV Protection Sun Top - Coral
Gallery item 1 out of 4
OLAIAN Kid's anti-UV sun top red
Rate: 4.7 stars, 304 votes
4 colors
£8.99
NABAIJI Kloupi Girls' Swim Shorty - Purple Pink
NABAIJI Kloupi Girls' Swim Shorty - Purple Pink
Rate: 4.5 stars, 43 votes
£18.99
SUBEA Kids top anti-UV long-sleeved 1.5 mm neoprene blue
SUBEA Kids top anti-UV long-sleeved 1.5 mm neoprene blue
Rate: 4.5 stars, 23 votes
£24.99
OLAIAN Girls’ anti-UV long-sleeved T-shirt - 500 Shiso black
OLAIAN Girl's anti-UV long-sleeved T-shirt - 500 - Orchid purple
OLAIAN Girl's anti-UV long-sleeved T-shirt - 500 Rainbow stripes turquoise
OLAIAN Girl's long sleeve sun top petrol peony
Gallery item 1 out of 4
OLAIAN Girls’ anti-UV long-sleeved T-shirt - 500 Shiso black
Rate: 4.6 stars, 110 votes
4 colors
£14.99
SUBEA Kids anti-UV short-sleeved 1.5 mm neoprene top - turquoise
SUBEA Kids anti-UV short-sleeved 1.5 mm neoprene top - turquoise
Rate: 4.6 stars, 182 votes
£19.99
NABAIJI Girl's One-Piece Swimsuit Lexa Celo pink orange
NABAIJI Girls' Swimming One-Piece Swimsuit Chlorine Resistant Lexa Kali - Blue
NABAIJI Girls' One-Piece Swimsuit Lexa Lines Blue
NABAIJI Girl's One-Piece Swimsuit Lexa Celo Blue Green
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NABAIJI Girl's One-Piece Swimsuit Lexa Celo pink orange
Rate: 4.7 stars, 558 votes
4 colors
£14.99£19.99
OLAIAN kids’ surfing anti-UV long-sleeved printed water T-shirt - pink
OLAIAN kids’ surfing anti-UV long-sleeved printed water T-shirt - blue
OLAIAN water t-shirt anti UV surf long sleeve white
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OLAIAN kids’ surfing anti-UV long-sleeved printed water T-shirt - pink
Rate: 4.8 stars, 345 votes
3 colors
£9.99
OLAIAN SWIM SHORTS 100 KATY BLACK
OLAIAN SWIMMING SHORTS 100 KATY PINK
OLAIAN SWIMMING SHORTS 100 KATY COCO
OLAIAN Girl's swim shorts - 100 Katy shiso black
OLAIAN Girl's swim shorts - 100 Katy rainbow stripes turquoise
OLAIAN girls swimming shorts KATY khaki
Gallery item 1 out of 6
OLAIAN SWIM SHORTS 100 KATY BLACK
Rate: 4.7 stars, 222 votes
6 colors
£6.99£12.99
NABAIJI Boys' Wetsuit - Shorty 100 Long-Sleeved - Two-tone Blue
NABAIJI Boys' Wetsuit - Shorty 100 Long-Sleeved - Two-tone Blue
£18.99
NABAIJI Girl's One-Piece Swimsuit Kamiye Dino Print
NABAIJI Girls' One-Piece Swimsuit Kamyleon Print - Fire black/yellow
NABAIJI Girls' one-piece swimsuit Kamiye Print - Alg Blue/Pink
Gallery item 1 out of 3
NABAIJI Girl's One-Piece Swimsuit Kamiye Dino Print
Rate: 4.7 stars, 788 votes
3 colors
£11.99£15.99
OLAIAN Kid's Surfing Anti-UV Long-sleeved Water T-shirt
OLAIAN kid's surfing UV protection long-sleeved water t-shirt blue
Gallery item 1 out of 2
OLAIAN Kid's Surfing Anti-UV Long-sleeved Water T-shirt
Rate: 4.7 stars, 156 votes
2 colors
£7.99
OLAIAN GIRL'S SURFING WETSUIT 500 4/3 MM BLACK RED
OLAIAN GIRL'S SURFING WETSUIT 500 4/3 MM BLACK RED
Rate: 5.0 stars, 1 votes
£79.99
Was £99.99
OLAIAN Girls’ Surfing Long-sleeve Neoprene shorty suit 900 1.5 mm - Black
OLAIAN Girls’ Surfing Long-sleeve Neoprene shorty suit 900 1.5 mm - Black
Rate: 4.7 stars, 7 votes
£54.99
OLAIAN swim shorts 550 - blue
OLAIAN swim shorts 550 - purple
OLAIAN swim shorts 550 black green
OLAIAN Boy's swim shorts - 550 Softgeo blue
OLAIAN Boy's swim shorts - 550 Canopy orange
OLAIAN Swim shorts 550 offshore green
Gallery item 1 out of 6
OLAIAN swim shorts 550 - blue
Rate: 4.6 stars, 218 votes
6 colors
£9.99£14.99
OLAIAN Kid's water tee shirt anti UV pink
OLAIAN Kids' Surfing UV Protection Water T-Shirt - Sky Blue
OLAIAN kids’ surfing anti-UV printed water T-Shirt - green
OLAIAN kids’ anti-UV printed surfing water T-shirt - turquoise
Gallery item 1 out of 4
OLAIAN Kid's water tee shirt anti UV pink
Rate: 4.8 stars, 861 votes
4 colors
£5.99
OLAIAN BOY'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 BLUE BLACK
OLAIAN BOY'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 BLUE BLACK
Rate: 4.5 stars, 12 votes
£34.99
OLAIAN Boy's swim shorts - 100 sky blue
OLAIAN Boy's swim shorts -100 navy blue
Gallery item 1 out of 2
OLAIAN Boy's swim shorts - 100 sky blue
2 colors
£5.99
NABAIJI Girls' One-piece Swimsuit Kamyli Spor
NABAIJI Girls' One-piece Swimsuit Kamily East
NABAIJI Girls One-Piece Swimsuit Kamyli all gradi blue
NABAIJI Girl's 1-Piece Swimsuit KAMYLI BLACK GOLD
NABAIJI Girls One-Piece Swimsuit Kamyli all game red
Gallery item 1 out of 5
NABAIJI Girls' One-piece Swimsuit Kamyli Spor
Rate: 4.6 stars, 128 votes
5 colors
£9.99£16.99
OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
OLAIAN GIRL'S Swimsuit bottom JUNE CORAL
OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
Gallery item 1 out of 3
OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
Rate: 4.3 stars, 268 votes
3 colors
£10.99
Was £12.99
NABAIJI Girl's swimsuit 1-piece Kamy Long black green
NABAIJI Girl's swimsuit 1-piece Kamy Long black green
Rate: 4.3 stars, 6 votes
£22.99
NABAIJI KAMYLEON 500 Girl's Swimsuit - Dino
NABAIJI KAMYLEON 500 Girl's Swimsuit - All Game Pink
NABAIJI KAMYLEON 500 Girl's Swimsuit - Star Black / Yellow
NABAIJI KAMYLEON 500 Girl's Swimsuit - All Camo Yellow
NABAIJI KAMYLEON 500 Girl's Swimsuit - Text blue / pink
Gallery item 1 out of 5
NABAIJI KAMYLEON 500 Girl's Swimsuit - Dino
Rate: 4.3 stars, 950 votes
5 colors
£11.99£15.99
NABAIJI Lila Navy 100 Girls Swimming One-Piece Swimsuit/Skirt - Lily navy
NABAIJI Lila Ama 100 Girls Swimming One-Piece Swimsuit/Skirt - White
NABAIJI Lila All Omi 100 Girls Swimming One-Piece Swimsuit/Skirt - Navy
Gallery item 1 out of 3
NABAIJI Lila Navy 100 Girls Swimming One-Piece Swimsuit/Skirt - Lily navy
Rate: 4.7 stars, 568 votes
3 colors
£17.99
NABAIJI KAMYIE + 500 Girls' one-piece swimsuit - Blue
NABAIJI KAMYIE + 500 Girls' one-piece swimsuit - Pink
Gallery item 1 out of 2
NABAIJI KAMYIE + 500 Girls' one-piece swimsuit - Blue
Rate: 4.6 stars, 279 votes
2 colors
£10.99
NABAIJI Girls’ Basic 1-piece Swimsuit purple
NABAIJI Girls’ Basic 1-piece Swimsuit Luna Blue
Gallery item 1 out of 2
NABAIJI Girls’ Basic 1-piece Swimsuit purple
Rate: 4.7 stars, 1083 votes
2 colors
£4.99
OLAIAN GIRL'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 TIARE BLACK
OLAIAN GIRL'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 TIARE BLACK
Rate: 4.8 stars, 5 votes
£39.99
NABAIJI GIRLS' 1-PIECE SWIMSUIT KAMYLEON BLACK
NABAIJI GIRLS' 1-PIECE SWIMSUIT KAMYLEON BLACK
£17.99
OLAIAN Boys' swim shorts -100 shadow red
OLAIAN Boy's swim shorts - 100 sign blue green
OLAIAN Boy's swim shorts - 100 banana blue
OLAIAN Boy's swim shorts - 100 happysurf red
OLAIAN Boy's swim shorts - 100 Sign orange
OLAIAN Boy's swim shorts - 100 shadow green
OLAIAN Boy's swim shorts - 100 Tokyo sun turquoise
Gallery item 1 out of 7
OLAIAN Boys' swim shorts -100 shadow red
7 colors
£8.99
NABAIJI Boys’ Long Swimming Trunks 100 All Chin Black
NABAIJI Boy's Swim Shorts - 100 Long - Pool Navy Blue / Ochre
NABAIJI Boys’ Swimming Shorts 100 Long - All-over Palm Blue
NABAIJI Boys’ Long Swimming Trunks 100 Palmi Black
NABAIJI Boys' long swimming swim shorts 100 - tex blue
NABAIJI Boys’ Swimming Shorts - 100 Long - KMO Yellow
Gallery item 1 out of 6
NABAIJI Boys’ Long Swimming Trunks 100 All Chin Black
Rate: 4.7 stars, 369 votes
6 colors
£9.99£12.99
NABAIJI Boy's Wetsuit - Shorty 100 Short Sleeve - Navy Blue / Blue
NABAIJI Boy's Wetsuit - Shorty 100 Short Sleeve - Navy Blue / Blue
Rate: 4.6 stars, 185 votes
£16.99
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 BLACK
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 CORAL
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 DAISIES AZURE BLUE
OLAIAN GIRL'S MIXLIFE ONE-PIECE SWIMSUIT 100 YELLOW
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 COCO TURQUOISE
OLAIAN One-piece swimsuit 100 - turquoise
OLAIAN Girl's 1-piece swimsuit - 100 Hiloe tropical party pink
Gallery item 1 out of 7
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 BLACK
Rate: 4.4 stars, 984 votes
7 colors
£6.49£9.99
NABAIJI Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
NABAIJI Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
Rate: 4.4 stars, 8 votes
£19.99
OLAIAN BOY'S SWIMMING SHORTS PALMITOS BLUE
OLAIAN boy's swimming shorts - black
Gallery item 1 out of 2
OLAIAN BOY'S SWIMMING SHORTS PALMITOS BLUE
Rate: 4.7 stars, 63 votes
2 colors
£7.99£10.99
OLAIAN 2-piece swimsuit TAMARA 100 - coral
OLAIAN 2-piece swimsuit TAMARA 100 black
Gallery item 1 out of 2
OLAIAN 2-piece swimsuit TAMARA 100 - coral
Rate: 4.6 stars, 405 votes
2 colors
£4.99£6.99
OLAIAN GIRL'S SWIMSUIT TOP SURF TRIANGLE BETTY 500 TURQUOISE PINK
OLAIAN BETTY 500 SURF GIRL'S SWIMSUIT TOP AND TRIANGLE TURQUOISE
OLAIAN GIRL'S SURF SWIMSUIT TRIANGLE TOP BETTY 500 BLUE
Gallery item 1 out of 3
OLAIAN GIRL'S SWIMSUIT TOP SURF TRIANGLE BETTY 500 TURQUOISE PINK
Rate: 4.6 stars, 405 votes
3 colors
£4.99£9.99
4.5/5 based on 20030 reviews collected online and in stores

Splish, splash!

Whether you're planning a summer holiday, booking swimming lessons for your toddler or just planning some fun family splash time at the local pool, our kids' swimwear range has everything you need. From pretty swimming costumes to practical swim shorts, we stock a wide range of swimwear for boys, girls and babies of all ages.

Each item in our range is designed to fit your child perfectly, offer excellent value for money and ensure they can bob about and practice strokes in total comfort. Shop now at Decathlon.