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Size Guide

Splash About Size Guide

Find the perfect fit for your swimming needs

Happy Nappy Products

Happy Nappy

Size Waist Thigh
(Small) 0 – 3 m 34 - 41 cm 17 - 22 cm
(Medium) 3 – 6 m 37 – 44 cm 19 – 24 cm
(Large) 6 – 12 m 40 – 47 cm 20 – 26 cm
(X Large) 1 – 2 y 42 – 50 cm 22 – 31 cm
(XX Large) 2 – 3 y 44 – 52 cm 26 – 33 cm
3 – 4 y 48 – 54 cm 27 – 35 cm
4 – 5 y 56 – 62 cm 29 – 37 cm

Happy Nappy Duo

Size Waist Thigh
(Small) 0 – 3 m 34 - 41 cm 17 - 22 cm
(Medium) 3 – 6 m 37 – 44 cm 19 – 24 cm
(Large) 6 – 12 m 40 – 47 cm 20 – 26 cm
(X Large) 1 – 2 y 42 – 50 cm 22 – 31 cm
(XX Large) 2 – 3 y 44 – 52 cm 26 – 33 cm
3 - 4 y 48 - 54 cm 27 - 35 cm
4 - 5 y 56 - 62 cm 29 - 37 cm

Happy Nappy Costume

Size Waist Thigh Chest HPS * Crotch
(Small) 0 – 4 m 34 - 41 cm 17 - 22 cm 41 – 48 cm 32 – 35 cm
(Medium) 3 – 8 m 37 – 44 cm 19 – 24 cm 46 – 50 cm 40 – 43 cm
(Large) 6 – 14 m 40 – 47 cm 20 – 26 cm 48 – 54 cm 44 - 47 cm
(X Large) 1 – 2 y 42 – 50 cm 22 – 31 cm 52 – 56 cm 48 – 51 cm
(XX Large) 2 – 3 y 44 – 52 cm 26 – 33 cm 54 – 60 cm 52 – 55 cm

*HPS = High point of shoulder

Happy Nappy Wetsuit

Size Waist Thigh Chest HPS * to Crotch
(Small) 0 – 4 m 36 - 42 cm 18 - 24 cm 40 – 44 cm 32 – 35 cm
(Medium) 3 – 8 m 40 – 46 cm 20 – 26 cm 44 – 48 cm 35 – 38 cm
(Large) 6 – 14 m 43 – 47 cm 22 – 28 cm 48 – 52 cm 39 - 42 cm
(X Large) 1 – 2 y 45 – 51 cm 24 – 30 cm 50 – 54 cm 42 – 44 cm

*HPS = High point of shoulder

Happy Nappy Sunsuit

Size Waist Thigh Chest HPS * to Crotch
(Small) 0 – 4 m 36 - 42 cm 18 - 24 cm 40 – 44 cm 32 – 35 cm
(Medium) 3 – 8 m 40 – 46 cm 20 – 26 cm 44 – 48 cm 35 – 38 cm
(Large) 6 – 14 m 43 – 47 cm 22 – 28 cm 48 – 52 cm 39 - 42 cm
(X Large) 1 – 2 y 45 – 51 cm 24 – 30 cm 50 – 54 cm 42 – 44 cm

*HPS = High point of shoulder

Toddler Jammers

Size Waist Thigh Length
(Small) 2 - 3 y 44 - 52 cm 24 - 30 cm 25cm
(Medium) 3 – 4 y 46 – 54 cm 26– 32 cm 26cm

Baby Wetsuits

Baby Wrap Wetsuit

Size Chest HPS* to Crotch
(Small) 0 – 6 m 42 - 44 cm 35 - 39 cm
(Medium) 6 - 18 m 44 - 51 cm 40 - 44 cm
(Large) 18 – 30 m 51 – 58 cm 42 – 46 cm

Warm In One Wetsuit

Size Chest HPS* to crotch Length
(Small) 0 - 3 m 50 - 54 cm 30 - 33 cm 48 cm
(Medium) 3 - 6 m 52 - 56 cm 33 - 36 cm 51 cm
(Large) 6 - 12 m 56 – 60 cm 37 – 39 cm 54 cm
(Extra Large) 12 - 24 m 60 – 64 cm 40 – 43 cm 60 cm

*HPS = High point of shoulder

Pool & Changing

After Swim Waterproof Onesie

Size Chest HPS * to Crotch
(Small) 6 – 12 m 57 cm 41 cm
(Medium) 1 – 2 y 64 cm 46 cm
(Large) 2 – 3 y 71 cm 51 cm

*HPS = High point of shoulder

Swim Hat

Size Dimensions
(Small) 0 – 18 m 40 – 54 cm
(Medium) 18 m + 42 – 60 cm

Changing Mat

Size Dimensions
One Size 41.5 x 69 cm

Nappy Wrap

Size Age
Small 0 - 4 m
Medium 3 - 14 m
Large Toddler +

Size Adjustable Under Nappy

Size Waist Thigh
(Small-Medium) 0 - 1 y 36- 42 cm 19 - 28 cm
(Medium- Large) 1 – 3 y 42 - 54 cm 28 - 35 cm

Silver Lining Under Nappy

Size Waist Thigh Length
(Small) 0 – 6 m 42 cm 17 - 28 cm 19cm
(Medium) 6 – 24 m 44 cm 22 - 34 cm 20cm
(Large) 2 – 3 y 50 cm 26 - 36 cm 21cm
3T 52 cm 27 - 36 cm 24.5cm
4T 59 cm 29 - 37 cm 26.5

Thermaswim Baby Suit

Size Chest Body
(Small) 3 - 6 m 40-44 cm 55cm
(Medium) 6 – 12 m 44-48 cm 61cm
(Large) 12 - 24 m 48-50 cm 67cm

Thermaswim Toddler Suit

Size Chest Body
2 - 4 y 50-52 cm 60cm
4 - 6 y 52-54 cm 64cm

Floatsuits

Floatsuit

Size Chest Length Weight
(Small) 1 - 2 y 51 cm 40 cm 11 - 15 kg
(Medium) 2 - 4 y 56 cm 41 cm 15 - 22 kg
(Large) 4 - 6 y 60 cm 43 cm 22 - 30 kg

Sleeved Floatsuit

Size Chest Length Weight
(Small) 1 - 2 y 51 cm 40 cm 11 - 15 kg
(Medium) 2 - 4 y 56 cm 41 cm 15 - 22 kg
(Large) 4 - 6 y 60 cm 43 cm 22 - 30 kg

Float Jackets

Go Splash Swim Vest

Size Chest Weight
(Small) 1 - 2 y 51 cm 11 - 15 kg
(Medium) 2 - 4 y 56 cm 15 - 22 kg
(Large) 4 - 6 y 60 cm 22 - 30 kg

Adjustable Swim Vest

Age Chest Weight
Age 6 - 10 Years 62 - 74 cm 30 - 60 kg

Go Splash Float Jacket 8- Piece

Size Chest Weight
(Small) 1 - 3 y 54 cm 11 - 19 kg
(Medium) 3 - 6 y 60 cm 19 - 30 kg

Boys Swimwear

Aqua Shorts

Size Waist Length
6 - 12 m 19.5 cm 17 cm
1 - 2 y 21.5 cm 18 cm
2 - 3 y 23.5 cm 19 cm
3 - 4 y 25.5 cm 20 cm

Rash Tops

Size Chest Length
1 - 2 y 54 – 58 cm 37 cm
2 - 3 y 58 – 62 cm 41 cm
3 - 4 y 64 – 68 cm 45 cm

Boys Shark Board Shorts

Size Waist Length
1 y 21.5 cm 21 cm
2 y 22.5 cm 23 cm
3 y 23.5 cm 24 cm
4 - 5 y 24.5 cm 25 cm
6 - 7 y 25.5 cm 27.5 cm

Boys Plain Black/Navy Shorts

Size Waist Length
6 - 7 y 25.5 cm 27.5 cm
8 - 9 y 29.5 cm 29.5 cm
10 - 11 y 31.5 cm 31.5 cm
12 - 13 y 33.5 cm 33.5 cm

Girls Swimwear

Essential / Jungle Swimming Costume

Size Chest Length
6 - 12 m 40cm 41cm
1 - 2 y 43cm 43cm
2 - 3 y 44cm 45cm
3 - 4 y 48cm 46cm
4 - 5 y 48cm 50cm
6 - 7 y 52cm 53cm
8 - 9 y 54cm 58cm
10 - 11 y 56cm 62cm
12 - 13 y 62cm 65cm

Rash Tops

Size Chest Length
1 - 2 y 54 – 58 cm 37 cm
2 - 3 y 58 – 62 cm 41 cm
3 - 4 y 64 – 68 cm 45 cm

Wetsuits & Sunsuits

Shorty Wetsuit

Size Chest Collar to Crotch
2 - 4 y 54 cm 38 cm
4 - 6 y 58 cm 40.5 cm

UV Sun and Sea Wetsuit

Size Chest HPS* to Crotch Length
1 - 2 y 50 – 54 cm 40 – 42 cm 60 cm
2 - 4 y 54 – 56 cm 42 – 44 cm 61 cm
4 - 6 y 56 – 60 cm 44 – 46 cm 62 cm

*HPS = High point of shoulder

UV Toddler Sunsuit

Size Chest HPS* to Crotch
1 - 2 Y 53 cm 38 cm
2 - 3 y 54 cm 39 cm
3 - 4 y 56 cm 41 cm

*HPS = High point of shoulder

Beach Accessories

Legionnaire Hat

Size Dimensions
1 - 3 y 38 - 48 cm
3 - 6 y 48 - 54 cm

Older Children & Adults

Maternity Swimming Costumes

Size Bust Waist Hip
UK 10 (38) 91 cm 98 cm 100 cm
UK 12 (40) 96 cm 103 cm 105 cm
UK 14 (42) 101 cm 108 cm 110 cm
UK 16 (44) 106 cm 113 cm 115 cm

Jammers

Toddler Jammers

Size Waist Thigh Length
(Small) 2 - 3 y 44 - 52 cm 24 – 30 cm 25 cm
(Medium) 3 - 4 y 46 – 54 cm 26 – 32 cm 26 cm

Child Jammers

Size Waist Thigh Length
(Small) 4 - 5 y 48 – 56 cm 28 – 34 cm 25 cm
(Medium) 5 - 6 y 50 – 58 cm 30 – 36 cm 27 cm
(Large) 6 - 7 y 52 – 60 cm 32 – 38 cm 30 cm
(Extra Large) 7 - 8 y 54 – 62 cm 34 – 40 cm 32 cm

Adult Jammers

Size Waist Thigh Length
Extra Small 56 – 68 cm 35 – 43 cm 38 cm
Small 62 – 70 cm 40 – 47cm 40 cm
Medium 68 – 78 cm 43 – 51 cm 42 cm
Large 76 – 80 cm 47 – 55 cm 44 cm
Extra Large 88 – 104 cm 50 – 60 cm 46 cm

Splash Shorts

Children Splash Shorts

Size Waist Thigh
(Small) 4 - 6 y 50 – 70 cm 30 – 40 cm
(Medium) 6 - 8 y 55 – 75 cm 40 – 50 cm
(Large) 8 - 10 y 60 – 80 cm 50 – 55 cm

Adult Splash Shorts

Size Waist Thigh
Small 66-86 cm 50 - 60 cm
Medium 74-94 cm 54 - 64 cm
Large 80-100 cm 60 - 70 cm
Extra Large 90-116 cm 64-74 cm

Splash Costume

Adult Splash Costume with Skirt

Size Chest Thigh
Small 68 – 78 cm 38 – 48 cm
Medium 76 – 90 cm 40 – 52 cm
Large 86 – 100 cm 48 – 60 cm
X Large 94 – 106 cm 54 – 68 cm

Splash Jammer Shorts

Adult Splash Jammer Shorts

Size Waist Thigh
Small 58 – 68 cm 44 – 54 cm
Medium 66 – 76 cm 50 – 60 cm
Large 74 – 84 cm 54 – 64 cm
X Large 82 – 92 cm 58 – 68 cm
X X Large 88 – 98 cm 62 – 72 cm

Thermaswim Adult Swim Top

Size Chest
XS/S 86-94 cm
M/L 96.5-101 cm
L/XL 104-112 cm
XXL 114+ cm

Thermaswim Adult Swim Shorts

Size Waist
XS/S 68.5-73.5 cm
M/L 76-86 cm
L/XL 88.5-99 cm
XXL 101+ cm