HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red
HyperBoom Splice 16" Swim Shorts Grey/Red

HyperBoom Splice 16" Swim Shorts Grey/Red

$14.69 $31.99
Size: XXS
Size Guide
✕

Men

Swimwear

Waist (Inches) Hip (Inches) Size
28 33.5 XXS
30 35.5 XS
32 37.5 S
34 39.5 M
36 41.5 L
38 43.5 XL
40 45.5 XXL
42 47.5 XXXL
Waist (CM) Hip (CM) Size
70 84.5 XXS
75 89.5 XS
80 94.5 S
85 99.5 M
90 104.5 L
95 109.5 XL
100 114.5 XXL
105 119.5 XXXL

Swim Shorts

Waist (Inches) Hip (Inches) Size
28 33.5 XXS
30 35.5 XS
32 37.5 S
34 39.5 M
36 41.5 L
38 43.5 XL
40 45.5 XXL
42 47.5 XXXL
Waist (CM) Hip (CM) Size
70 84.5 XXS
75 89.5 XS
80 94.5 S
85 99.5 M
90 104.5 L
95 109.5 XL
100 114.5 XXL
105 119.5 XXXL

Fastskin LZR Pure Intent & Pure Valor

Waist (Inches) Hip (Inches) Speedo Sze
24 29.5 24
26 31.5 26
28 33.5 28
30 36.5 30
32 37.5 32
34 39.5 34
36 41.5 36
38 43.5 38
40 45.5 40
42 47.5 42
44 49.5 44
46 51.5 46

Waist (CM) Hip (CM) Speedo Sze
60 74.5 24
65 79.5 26
70 84.5 28
75 89.5 30
80 94.5 32
85 99.5 34
90 104.5 36
95 109.5 38
100 114.5 40
105 119.5 42
110 124.5 44
115 129.5 46

Fastskin LZR Elite Openwater Suit

Waist (Inches) Hip (Inches) Speedo Sze
24 29.5 24
26 31.5 26
28 33.5 28
30 36.5 30
32 37.5 32
34 39.5 34
36 41.5 36
38 43.5 38
40 45.5 40
42 47.5 42
44 49.5 44
46 51.5 46
Waist (CM) Hip (CM) Speedo Sze
60 74.5 24
65 79.5 26
70 84.5 28
75 89.5 30
80 94.5 32
85 99.5 34
90 104.5 36
95 109.5 38
100 114.5 40
105 119.5 42
110 124.5 44
115 129.5 46

Wetsuits

Waist (Inches) Hip (Inches) Speedo Sze
24 29.5 24
26 31.5 26
28 33.5 28
30 36.5 30
32 37.5 32
34 39.5 34
36 41.5 36
38 43.5 38
40 45.5 40
42 47.5 42
44 49.5 44
46 51.5 46
Waist (CM) Hip (CM) Speedo Sze
60 74.5 24
65 79.5 26
70 84.5 28
75 89.5 30
80 94.5 32
85 99.5 34
90 104.5 36
95 109.5 38
100 114.5 40
105 119.5 42
110 124.5 44
115 129.5 46

Footwear

Foot Length (CM) EU Size UK Size
25-25.5 39 6
26-26.5 40.5 7
27-27.5 42 8
28-28.5 43 9
29-29.5 44.5 10
30-30.5 46 11
31-31.5 47 12
32-32.5 48 13

Pool Socks

UK US EUR Size (cm)
1 - 4 2 - 5 33 - 37 21 - 23.5
5 - 7 6 - 8 38 - 40.5 24 - 26.5
8 - 10 9 - 11 42 - 44.5 27 - 29.5
11 - 12 12 - 13 46 - 47 30 - 31.5

Latex Socks

Speedo Size S M L
UK 3-7 5-9 7-12
EU 35-40 38-42 40-45

Women

Swimwear

Speedo Size 30 32 34 36 38 40 42 44 46
UK 6 8 10 12 14 16 18 20 22
Body Measurements cm cm cm cm cm cm cm cm cm
Bust 79-83 84-87 88-92 93-98 99-103 104-108 109-113 114-118 119-123
Waist* 61-65 66-69 70-74 75-80 81-85 86-90 91-95 96-100 101-105
Hips 86-90 91-94 95-99 100-105 106-110 111-115 116-120 121-125 126-131
Speedo Size 30 32 34 36 38 40 42 44 46
UK 6 8 10 12 14 16 18 20 22
ES 34 36 38 40 42 44 46 48 50
IT 40 42 44 46 48 50 52 54 56
DE 34 36 38 40 42 44 46 48 50
FR 36 38 40 42 44 46 48 50 52

Fastskin LZR Pure Intent & Pure Valor

SIZE 18 20 22 23 24 25 26 28 30
A-Body Loop CM 136.0-142.0 142.0-148.0 148.0-153.0 151.0-156.0 154.0-158.0 157.0-162.0 160.0-165.5 165.5-171.0 171.0-177.0
A-Body loop inches 54.0-56.0 56.0-58.0 58.0-60.0 59.5-61.5 60.5-62.0 61.5-63.5 63.0-65.0 65.0-67.5 67.5-69.5
C-Chest CM 72.0-78.0 78.0-84.0 84.0-87.0 87.0-90.0 90.0-93.0 93.0-96.0 96.0-101.0 101.0-105.0 105.0-111.0
C-Chest Inches 28.0-30.5 30.5-33.0 33.0-34.0 34.0-35.5 35.5-36.5 36.5-37.5 37.5-40.0 40.0-41.5 41.5-43.5
D- Waist CM’s 57.0-61.5 61.5-66.0 66.0-69.0 69.0-71.5 71.5-74.0 74.0-76.5 76.5-80.0 80.0-84.0 84.0-89.0
D-Waist Inches 22.0-24.0 24.0-26.0 26.0-27.0 27.0-28.0 28.0-29.0 29.0-30.0 30.0-31.0 32.0-33.0 33.0-35.0
B- Hip CM’s 75.0-81.0 81.0-87.0 87.0-90.0 90.0-93.0 93.0-96.0 96.0-99.0 99.0-103.5 103.5-108.0 108.0-114.0
B-Hip Inches 30.0-32.0 32.0-34.0 34.0-35.5 35.5-36.5 36.5-37.5 37.5-39.0 39.0-40.5 40.5-42.5 42.5-45.0

Wetsuits

Height (Inches) Chest (Inches) Waist (Inches) Hips (Inches) Speedo Size
4'9-5'0" 30-33 22.5-25.5 31.5-34.5 XXS
4'10-5'2" 31-34 24-27 33-36 XS
5'1-5'5" 32.5-35.5 25-28 34.5-37.5 S
5'4-5'8" 32.5-35.5 25-28 34.5-37.5 S (Tall)
5'3.5-5'7.5" 34-37 26.5-29.5 35.5-38.5 M
5'6-5'10" 25.5-38.6 28.5-31.5 36.5-39.5 L
5'9-6'1" 37.5-40.5 30-33 38.5-41.5 XL
Speedo Women's Wetsuits Size Guide
Height (CM) Chest (CM) Waist (CM) Hips (CM) Speedo Size
145-152 76-83 57-65 80-88 XXS
147-157 79-87 61-68 84-91 XS
155-165 82-90 64-72 87-95 S
163-173 82-90 64-72 87-95 S (Tall)
161-171 86-94 67-75 90-98 M
168-178 90-98 72-80 93-100 L
175-185 95-103 77-84 97-105 XL

Maternity Swimwear

Speedo Women's Maternity Swimwear Size Guide
UK Dress Size (Pre-Pregnancy) Bust (Inches) Waist (Inches) Hip (Inches) Speedo Size
8 30-32 25 35 XS
10 32-34 27 37 S
12 34-36 29 39 M
14 36-38 31 41 L
16 38-40 33 43 XL
18 40-42 35 45 XXL
Speedo Women's Maternity Swimwear Size Guide
UK Dress Size (Pre-Pregnancy) Bust (CM) Waist (CM) Hip (CM) Speedo Size
8 82 64 89 XS
10 87 69 94 S
12 92 74 99 M
14 97 79 104 L
16 102 84 107 XL
18 107 89 114 XXL

Female Watershort

Speedo Size XXS XS S M L XL XXL
UK 6 8 10 12 14-16 18 20-22
Body Measurements cm cm cm cm cm cm cm
Bust 79-83 84-87 88-92 93-98 99-107 108-116 117-125
Waist* 61-65 66-69 70-74 75-80 81-89 90-98 99-106
Hips 86-90 91-94 95-99 100-105 106-114 115-123 124-132

Footwear

Foot Length (CM) EU Size UK Size
21.5 35.5 3
22.5 37 4
23.5 38 5
24.5 39 6
25.5 40.5 7
26.5 42 8
27.5 43.5 9

Pool Socks

UK US EUR Size (cm)
1 - 4 2 - 5 33 - 37 21 - 23.5
5 - 7 6 - 8 38 - 40.5 24 - 26.5
8 - 10 9 - 11 42 - 44.5 27 - 29.5
11 - 12 12 - 13 46 - 47 30 - 31.5

Latex Socks

Speedo Size S M L
UK 3-7 5-9 7-12
EU 35-40 38-42 40-45

Girl's

Swimwear

Approx. Age Height (Inches) Chest (Inches) Waist (Inches) Hips (Inches) Speedo Size
4-5 41 22 21 23 22
5-6 45.5 24 22 25 24
7-8 50.5 26 23 27.5 26
9-10 55 28.5 24.5 30 28
11-12 60 30.5 25.5 33 30
13-14 64.5 33 27 35.5 32
15-16 69 36.5 29 38 34
Approx. Age Height (CM) Chest (CM) Waist (CM) Hips (CM) Speedo Size
4-5 104 55.5 53 58 22
5-6 116 61 56 64 24
7-8 128 66.5 59 70 26
9-10 140 72 62 76 28
11-12 152 77.5 65 84 30
13-14 164 84 69 90 32
15-16 176 90.5 73 96 34

Girl's 6 Months - 6 Years Swimwear

Approx. Age Height (Inches) Chest (Inches) Waist (Inches) Hips (Inches) Speedo Size
4-5 41 22 21 23 22
5-6 45.5 24 22 25 24
7-8 50.5 26 23 27.5 26
9-10 55 28.5 24.5 30 28
11-12 60 30.5 25.5 33 30
13-14 64.5 33 27 35.5 32
15-16 69 36.5 29 38 34
Approx. Age Height (CM) Chest (CM) Waist (CM) Hips (CM) Speedo Size
4-5 104 55.5 53 58 22
5-6 116 61 56 64 24
7-8 128 66.5 59 70 26
9-10 140 72 62 76 28
11-12 152 77.5 65 84 30
13-14 164 84 69 90 32
15-16 176 90.5 73 96 34
Height (Inches) Chest (Inches) Speedo Size
29-31 20.5 6-9 Months
31-33 21 9-12 Months
36 22 2 Years
39 23 3 Years
43 23.5 4 Years
45 24.5 5 Years
47 25 6 Years
Height (CM) Chest (CM) Speedo Size
74-80 52 6-9 Months
80-84 54 9-12 Months
92 56 2 Years
100 58 3 Years
110 60 4 Years
115 62 5 Years
120 64 6 Years

Infant Float Vest

Chest Mass Speedo Size
51cm 0-15kg 1 - 2 YRS
56cm 15 - 20kg 2 - 4 YRS
61cm 20 - 30kg 4 - 6 YRS

Fastskin Endurance+ Junior Racing Suit

Approx. Age Chest (Inches) Waist (Inches) Hips (Inches) Height (Inches) Speedo Size
4 Years 22 21 23 41 22
6 Years 24 22 25 45.5 24
8 Years 26 23 27.5 50.5 26
10 Years 28.5 24.5 30 55 28
12 Years 30.5 25.5 33 60 30
14 Years 33 27 35.5 64.5 32
16 Years 36.5 29 38 69 34

Girl's Float Suit

Chest Mass Speedo Size
55cm 15-18kg 2-3 YRS
57cm 18-22kg 3-4 YRS
59cm 22-26kg 4-5 YRS
61cm 26-30kg 5-6 YRS

Girl's Swim (Aqua) Nappy

Height Mass Speedo Size
62cm 6kg 0-3 Mths
68cm 8kg 3-6 Mths
74cm 9.5kg 6-9 Mths
80cm 11kg 9-12 Mths
86cm 12kg 12-18 Mths
92cm 13kg 18-24 Mths

Boy's

Swimwear

Approx. Age Height (Inches) Chest (Inches) Waist (Inches) Hip (Inches) Speedo Size
4-5 41 21.5 21 23.5 22
5-6 46 23.5 23 25.5 24
7-8 50 25.5 24 27.5 26
9-10 55 28 26 29.5 28
11-12 60 30.5 28 32 30
13-14 64.5 33 30 34.5 32
15-16 69 36 32 37 34
Approx. Age Height (CM) Chest (CM) Waist (CM) Hip (CM) Speedo Size
4-5 104 54.5 53.5 60 22
5-6 116 60 58 65 24
7-8 128 65.5 61.5 70 26
9-10 140 71 66 75 28
11-12 152 78 71 81.5 30
13-14 164 84 76 88 32
15-16 176 91 81 94.5 34
Height (Inches) Waist (Inches) Speedo Size
29-31 19.5 6-9 Months
31-33 20.5 9-12 Months
36 21 2 Years
39 21.5 3 Years
43 22 4 Years
45 22.5 5 Years
47 23 6 Years
Height (CM) Waist (CM) Speedo Size
74-80 50 6-9 Months
80-84 52 9-12 Months
92 54 2 Years
100 55 3 Years
110 56 4 Years
115 57 5 Years
120 58 6 Years

Junior Boy's Swim Shorts

Approx. Age Height (Inches) Chest (Inches) Waist (Inches) Hip (Inches) Speedo Size
4-5 41 21.5 21 23.5 22
5-6 46 23.5 23 25.5 24
7-8 50 25.5 24 27.5 26
9-10 55 28 26 29.5 28
11-12 60 30.5 28 32 30
13-14 64.5 33 30 34.5 32
15-16 69 36 32 37 34
Approx. Age Height (CM) Chest (CM) Waist (CM) Hip (CM) Speedo Size
4-5 104 54.5 53.5 60 22
5-6 116 60 58 65 24
7-8 128 65.5 61.5 70 26
9-10 140 71 66 75 28
11-12 152 78 71 81.5 30
13-14 164 84 76 88 32
15-16 176 91 81 94.5 34
Height (Inches) Waist (Inches) Speedo Size
29-31 19.5 6-9 Months
31-33 20.5 9-12 Months
36 21 2 Years
39 21.5 3 Years
43 22 4 Years
45 22.5 5 Years
47 23 6 Years
Height (CM) Waist (CM) Speedo Size
74-80 50 6-9 Months
80-84 52 9-12 Months
92 54 2 Years
100 55 3 Years
110 56 4 Years
115 57 5 Years
120 58 6 Years

Boy's 6 Months - 6 Years Swimwear

Approx. Age Height (Inches) Chest (Inches) Waist (Inches) Hip (Inches) Speedo Size
4-5 41 21.5 21 23.5 22
5-6 46 23.5 23 25.5 24
7-8 50 25.5 24 27.5 26
9-10 55 28 26 29.5 28
11-12 60 30.5 28 32 30
13-14 64.5 33 30 34.5 32
15-16 69 36 32 37 34
Approx. Age Height (CM) Chest (CM) Waist (CM) Hip (CM) Speedo Size
4-5 104 54.5 53.5 60 22
5-6 116 60 58 65 24
7-8 128 65.5 61.5 70 26
9-10 140 71 66 75 28
11-12 152 78 71 81.5 30
13-14 164 84 76 88 32
15-16 176 91 81 94.5 34
Height (Inches) Waist (Inches) Speedo Size
29-31 19.5 6-9 Months
31-33 20.5 9-12 Months
36 21 2 Years
39 21.5 3 Years
43 22 4 Years
45 22.5 5 Years
47 23 6 Years
Height (CM) Waist (CM) Speedo Size
74-80 50 6-9 Months
80-84 52 9-12 Months
92 54 2 Years
100 55 3 Years
110 56 4 Years
115 57 5 Years
120 58 6 Years

Boy's Float Vest

Chest Mass Speedo Size
51cm 0-15kg 1-2 YRS
56cm 15-20kg 2-4 YRS
61cm 20-30kg 4-6 YRS

Boy's Float Suit

Chest Mass Speedo Size
55cm 15-18kg 2-3 YRS
57cm 18-22kg 3-4 YRS
59cm 22-26kg 4-5 YRS
61cm 26-30kg 5-6 YRS

Boy's Swim (Aqua) Nappy

Height Mass Speedo Size
62cm 6kg 0-3 Mths
68cm 8kg 3-6 Mths
74cm 9.5kg 6-9 Mths
80cm 11kg 9-12 Mths
86cm 12kg 12-18 Mths
92cm 13kg 18-24 Mths

Boy's Fastskin Endurance+ Racing Suit

Approx. Age Waist Hips Height Speedo Size
Inch
Cm		 4 yrs 21"
53.5cm		 23.5"
60cm		 41"
104cm		 22
Inch
Cm		 6 yrs 23"
58cm		 25.5"
65cm		 46"
116cm		 24
Inch
Cm		 8 yrs 24"
61.5cm		 27.5"
70cm		 50"
128cm		 26
Inch
Cm		 10 yrs 26"
66cm		 29.5"
75cm		 55"
140cm		 28
Inch
Cm		 12 yrs 28"
71cm		 32"
81.5cm		 60"
152cm		 30
Inch
Cm		 14 yrs 30"
76cm		 34.5"
88cm		 64.5"
164cm		 32
Inch
Cm		 16 yrs 32"
81cm		 37"
94.5cm		 69"
176cm		 34

Training Aids

Biofuse Fitness Fin

Size UK US EUR
XS 12 - 1 1 - 3 31 - 33
S 2 - 4 3 - 5 34 - 37
M 5 - 7 6 - 8 38 - 41
L 8 - 10 9 - 11 42 - 45
XL 11 - 13 12 - 14 46 - 48

Training Fin

Size UK US EUR
XXXS 1 12 - 1 32 - 33
XXXS 1 - 2 1 - 2 34 - 35
XS 2 - 3 3 - 4 36 - 37
S 4 - 5 5 - 6 38 - 39
M 6 - 7 7 - 8 40 - 41
L 8 - 9 9 - 10 42 - 43
XL 9.5 - 10.5 10.5 - 11.5 44 - 45

Biofuse Training Fin

UK US EUR
2 - 3 3 - 4 35 - 36
4 - 5 5 - 6 37 - 38
6 - 7 7 - 8 39 - 41
8 - 9 9 - 10 42 - 43
10 - 11 11 - 12 44 - 46
11 - 12 12 - 13 47 - 48

Scuba Fins

UK US EUR
3 4 35 - 36
4 - 5 5 - 6 37 - 38
6 - 7 7 - 8 39 - 40
8 9 41 - 42
9 - 10 10 - 11 43 - 44
11 12 45 - 46

Junior Scuba Fins

UK US EUR
12 - 1 13 - 2 31 - 33
1 - 3 2 - 4 33 - 36
3 - 5 4 - 6 36 - 38

Fastskin KickFin

UK US EUR
3 - 4 4 - 5 36 - 37
5 - 6 6 - 7 38 - 39
7 - 8 8 - 9 40 - 42
9 - 10 10 - 11 43 - 45
11 - 12 12 - 13 46 - 47

Footwear

Junior Footwear

Foot Length European Size UK Size
16 - 16.5cm 28 10
17 - 17.5cm 29.5 11
18 - 18.5cm 31 12
19.19.5cm 32 13
20 - 20.5cm 33 1
21 - 21.5cm 34.5 2
22 - 22.5cm 35.5 3
23 - 23.5cm 37 4
24 - 24.5cm 38 5

Infant Footwear

Foot Length European Size UK Size
11-11.5cm 21.5 5
12-12.5cm 23 6
13-13.5cm 24 7
14-14.5cm 25.5 8
15-15.5cm 27 9

Classic sports styling. We’ve raided the Speedo design archives for this grey Hyper Boom Splice 16” swim short, which features a revival of our iconic go-faster Boom logo stripe in fluro red. Lightweight and comfortable with a drawstring waist for a great fit, the shorts include back and side pocket drainage, so you feel light and fast during your workout.

  • Drawstring Waist - for a secure and adjustable fit
  • Back & side seam pockets, all with water drainage

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