Swimwear & Beachwear

Sun, sand and swimsuits for little ones
520 items
NABAIJI Girls' 1-piece swimsuit shorty Kamyleon black
NABAIJI Girls' 1-piece swimsuit shorty Kamyleon black
£19.99
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
OLAIAN Kids' short sleeve fleece T-shirt - Blue
OLAIAN Kids' short sleeve fleece T-shirt - Blue
Rate: 4.3 stars, 279 votes
£12.99
OLAIAN Kids' Steamer Full Wetsuit 100 4/3
OLAIAN Kids' Steamer Full Wetsuit 100 4/3
Rate: 4.3 stars, 193 votes
£54.99
Was £64.99
OLAIAN 100 kid's 1.5mm neoprene blue Shorty Surfing wetsuit
OLAIAN 100 Surf Shorty kids' Wetsuit 1.5mm neoprene - Purple/Pink
Gallery item 1 out of 2
OLAIAN 100 kid's 1.5mm neoprene blue Shorty Surfing wetsuit
Rate: 4.5 stars, 2049 votes
2 colors
£14.99
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, 100 votes
2 colors
£16.99
OLAIAN Kids' full wetsuit 100 2/2 - Navy
OLAIAN Kids' full wetsuit 100 2/2 - Navy
Rate: 4.1 stars, 210 votes
£39.99
SPEEDO Girls’ One-Piece Swimsuit SPEEDO SPLASHBACK Black stars
SPEEDO Girls’ One-Piece Swimsuit SPEEDO SPLASHBACK Black stars
Rate: 4.7 stars, 45 votes
£16.99
NABAIJI Boys' Swimming Suit - Shorty 100 Kloupi - Blue Red
NABAIJI Boys' Swimming Suit - Shorty 100 Kloupi - Blue Red
Rate: 4.6 stars, 271 votes
£18.99
NABAIJI Girls' long-sleeved swimsuit - UV Combiswim 100 - Pink Purple
NABAIJI Girls' long-sleeved swimsuit - UV Combiswim 100 - Pink Purple
£19.99
OLAIAN Kid's anti-UV sun top red
OLAIAN Kid's anti-UV sun top blue turquoise
OLAIAN Kid's anti-UV sun top yellow
OLAIAN Kid’s Anti-UV Sun Top black
OLAIAN Kids' UV Protection Sun Top - Coral
Gallery item 1 out of 5
OLAIAN Kid's anti-UV sun top red
Rate: 4.7 stars, 304 votes
5 colors
£8.99
NABAIJI Girl's One-Piece Swimsuit Lexa Celo pink orange
NABAIJI Girls' Swimming One-Piece Swimsuit Chlorine Resistant Lexa Kali - Blue
NABAIJI Girl's One-Piece Swimsuit Lexa Celo Blue Green
Gallery item 1 out of 3
NABAIJI Girl's One-Piece Swimsuit Lexa Celo pink orange
Rate: 4.7 stars, 556 votes
3 colors
£14.99£19.99
NABAIJI Kloupi Girls' Swim Shorty - Purple Pink
NABAIJI Kloupi Girls' Swim Shorty - Purple Pink
Rate: 4.6 stars, 42 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 Kids' UV protection long sleeve T-shirt - blue
OLAIAN Kids' UV protection long sleeve T-shirt - blue
Rate: 4.7 stars, 126 votes
£6.49£9.99
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
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
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 One-piece long-sleeved swimsuit turquoise
OLAIAN One-piece long-sleeved swimsuit Storm blue
Gallery item 1 out of 2
OLAIAN One-piece long-sleeved swimsuit turquoise
Rate: 4.7 stars, 73 votes
2 colors
£19.99
OLAIAN Girl's anti-UV long-sleeved T-shirt - 500 Rainbow stripes turquoise
OLAIAN Girl's anti-UV long-sleeved T-shirt - 500 - Orchid purple
OLAIAN Girls’ anti-UV long-sleeved T-shirt - 500 Shiso black
OLAIAN Girl's long sleeve sun top petrol peony
Gallery item 1 out of 4
OLAIAN Girl's anti-UV long-sleeved T-shirt - 500 Rainbow stripes turquoise
Rate: 4.6 stars, 110 votes
4 colors
£14.99
OLAIAN GIRL'S LANA TEXTURED SWIMSUIT CROP TOP 500 STRAWBERRY
OLAIAN GIRL'S SWIMSUIT CROP TOP LANA TEXTURE 500 MELON
OLAIAN GIRL'S LANA TEXTURED SWIMSUIT CROP TOP 500 LAVENDER
OLAIAN Girl's textured swimsuit crop top - 500 Lana black
Gallery item 1 out of 4
OLAIAN GIRL'S LANA TEXTURED SWIMSUIT CROP TOP 500 STRAWBERRY
Rate: 4.1 stars, 55 votes
4 colors
£6.99£12.99
OLAIAN Girl's anti-UV short-sleeved T-shirt - 500 Palm white
OLAIAN Girl's anti-UV short-sleeved T-shirt - 500 Palm white
Rate: 4.7 stars, 122 votes
£12.99
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
NABAIJI Baby Anti-UV Long-sleeved T-shirt SAVANNAH print
NABAIJI Baby Anti-UV Long-sleeved T-shirt Pantai print
NABAIJI Baby Anti-UV Long-sleeved T-shirt Rainbow print
NABAIJI Baby Anti-UV Long-sleeved T-shirt Van print
NABAIJI Baby Anti-UV Long-sleeved T-shirt flower print
Gallery item 1 out of 5
NABAIJI Baby Anti-UV Long-sleeved T-shirt SAVANNAH print
5 colors
£9.99
TRIBORD Dinghy 500 Kids' Sailing GBS 3/2 mm Neoprene Wetsuit - Blue/Orange
TRIBORD Dinghy 500 Kids' Sailing GBS 3/2 mm Neoprene Wetsuit - Blue/Orange
Rate: 4.4 stars, 173 votes
£49.99£59.99
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
NABAIJI Girl's One-Piece Swimsuit Kamiye Dino Print
NABAIJI Girls' one-piece swimsuit Kamiye Print - Alg Blue/Pink
NABAIJI Girls' One-Piece Swimsuit Kamyleon Print - Fire black/yellow
NABAIJI Girl's One-Piece Swimsuit Kamiye - Print Pot Blue
Gallery item 1 out of 4
NABAIJI Girl's One-Piece Swimsuit Kamiye Dino Print
Rate: 4.7 stars, 784 votes
4 colors
£11.99£15.99
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
OLAIAN Boys' Long-sleeved NEO Sun Top block neon orange
OLAIAN Boy's NEO sun top long sleeve black khaki
Gallery item 1 out of 2
OLAIAN Boys' Long-sleeved NEO Sun Top block neon orange
Rate: 4.7 stars, 40 votes
2 colors
£11.99£17.99
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 MELON
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 STRAWBERRY
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 LAVENDER
OLAIAN Girl's textured swimsuit bottom - 500 bao black
Gallery item 1 out of 4
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 MELON
Rate: 4.6 stars, 47 votes
4 colors
£7.99£12.99
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, 1071 votes
2 colors
£4.99
NABAIJI Lila Navy 100 Girls Swimming One-Piece Swimsuit/Skirt - Lily navy
NABAIJI Lila Ama 100 Girls Swimming One-Piece Swimsuit/Skirt - White
Gallery item 1 out of 2
NABAIJI Lila Navy 100 Girls Swimming One-Piece Swimsuit/Skirt - Lily navy
Rate: 4.7 stars, 566 votes
2 colors
£17.99
OLAIAN Girl's 1-piece swimsuit - 900 Calysta shiso black
OLAIAN GIRL'S ONE-PIECE CALYSTA SWIMSUIT 900 BLACK GOLD
Gallery item 1 out of 2
OLAIAN Girl's 1-piece swimsuit - 900 Calysta shiso black
Rate: 4.2 stars, 17 votes
2 colors
£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
Gallery item 1 out of 2
OLAIAN kids’ surfing anti-UV long-sleeved printed water T-shirt - pink
Rate: 4.8 stars, 345 votes
2 colors
£9.99
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
NABAIJI Girl's Vega + Swimming one-piece swimsuit navy herringbone
NABAIJI Girls' 1-piece swimsuit Vega+ navy
NABAIJI Girls' 1-piece swimsuit Vega - Purple, WA Swimmers
Gallery item 1 out of 3
NABAIJI Girl's Vega + Swimming one-piece swimsuit navy herringbone
Rate: 4.6 stars, 255 votes
3 colors
£14.99
NABAIJI Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
NABAIJI Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
£19.99
NABAIJI Boys' Wetsuit - Shorty 100 Long-Sleeved - Two-tone Blue
NABAIJI Boys' Wetsuit - Shorty 100 Long-Sleeved - Two-tone Blue
£18.99
OLAIAN GIRL'S SURFING TRIANGLE LILY SWIMSUIT TOP 900 BLUR PINK
OLAIAN GIRL'S SURFING LILY SWIMSUIT TRIANGLE TOP 900 BLACK
OLAIAN Girl's swimsuit top - 900 Lily purple turquoise
Gallery item 1 out of 3
OLAIAN GIRL'S SURFING TRIANGLE LILY SWIMSUIT TOP 900 BLUR PINK
Rate: 4.8 stars, 19 votes
3 colors
£9.99£14.99
NABAIJI Boy's Wetsuit - Shorty 100 Short Sleeve - Navy Blue / Blue
NABAIJI Boy's Wetsuit - Shorty 100 Short Sleeve - Navy Blue / Blue
Rate: 4.5 stars, 183 votes
£16.99
4.4/5 based on 34856 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.