Royal Fins Academy Women's Kneeskin Swimsuit

Female kneeskin swimsuit, sublimation printed on poly spandex with black nylon knit inner lining.

Below a basic children's guide

22 5-6 years
24 7-8 years
26 9-10 years
28 11-12 years
30 13-14 years

Sizing: Choose by your body measurements in cm (below), not your usual clothing size. The kneeskin fits snug for a streamlined, low-drag racing fit — for a more relaxed training fit, go one size up. Junior swimmers: please measure rather than buying by age.

Kneeskin size chart — body measurements (cm)

Size	Alias	Bust	Waist	Hip	Leg (above knee)
22	5XS	54–58	42–46	56–61	24–29
24	4XS	59–63	47–52	62–67	26–31
26	3XS	64–68	53–58	68–73	28–33
28	2XS	69–73	59–63	74–79	30–35
30	XS	74–78	62–66	80–83	32–37
32	S	79–84	64–68	84–89	34–39
34	M	85–89	69–73	90–94	36–41
36	L	90–94	74–78	95–99	38–43
38	XL	95–99	79–83	100–104	40–45
40	2XL	100–104	84–88	105–110	42–47
42	3XL	105–110	89–94	111–116	44–49
44	4XL	111–116	95–100	117–122	46–51
46	5XL	117–122	101–106	123–128	48–53

The letter alias is a rough guide only — our sizing runs smaller than everyday clothing, so go by your bust measurement first.

How to measure

Bust: around the fullest part of your chest.
Waist: around the narrowest part of your natural waist.
Hip: around the fullest part of your hips and seat.
Leg (above knee): around the thigh, just above the knee.

Junior swimmers: rough age guide only — 22 ≈ 5–6 yrs, 24 ≈ 7–8 yrs, 26 ≈ 9–10 yrs, 28 ≈ 11–12 yrs, 30 ≈ 13–14 yrs. Children vary at the same age, so measure and choose by the numbers, not by age.