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Light Blue Striped | Cottesloe | Sustainable Short Sleeve Kids Wetsuit
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Our Sizing Guides
See below sizing for Women's Swimwear
SIZING CM | ||||||
AU | 6 (XS) | 8 (S) | 10 (M) | 12 (L) | 14 (XL) | 16 (XXL) |
Bust | 80 | 84 | 88 | 92 | 96 | 100 |
Waist | 66 | 69 | 72 | 76 | 80 | 85 |
Hip | 89 | 93 | 97 | 100 | 103 | 106 |
Bra Cup Size | AA/A | B | C/D | D | DD | E |
Our swim bottoms run fairly true to size.
Our rash tops run smaller in size. If you are in between sizing or prefer your rash top not too tight, we recommend sizing up.
Our balconette top runs smaller in the cup size. We recommend sizing up if you have a larger cup size for more coverage.
Please note, we aim to continue increasing our sizing to size 18, 20 and 22 in the near future. Please reach out to us if you would like to pre order one of these sizes.
See below sizing chart for Kids wetsuits
Size |
Height(cm) |
Height Range(cm) |
Weight (kg) |
Waist (cm) | Neck (cm) |
Chest (cm) |
Leg (cm) | Body (cm) |
2/3 |
91 |
88-98 |
11-13 |
53.5 |
25.5 |
56 |
28 |
38 |
4/5 |
104 |
98-112 |
15-17 |
56 |
26.7 |
60.5 |
35 |
42.7 |
6/7 |
118 |
112-125 |
20-25 |
58.5 |
27.9 |
65 |
42 |
47.4 |
8/9 |
130 |
125-136 |
25-30 |
61 |
29.1 |
69.5 |
49 |
52.1 |
Our wetsuit sizes run fairly closely with ages in years for average sized kids.
For example, a 2 year old would fit the size 2 but might be a little loose and by 3 years of age will fit them nice and snug.
See below sizing chart for Kids swimwear
Size & Age |
Height (cm) |
Chest (cm) |
Waist (cm) |
Hip (cm) |
1 |
85 |
54 |
53 |
53 |
2 |
92 |
56 |
54 |
56 |
3 |
100 |
58 |
55 |
59 |
4 |
108 |
60 |
56 |
62 |
5 |
115 |
62 |
57 |
64 |
6 |
120 |
64 |
58 |
66 |
7 |
125 |
66 |
59 |
68 |
8 |
130 |
68 |
60 |
70
|
Our swimsuit sizes run fairly closely with ages in years for average sized kids.
See below sizing charts for tracksuits
Size |
Chest (cm) |
Jumper length (cm) |
Pant length (cm) |
Waist (cm) |
1 |
38 |
38 |
48 |
41.5 |
2 |
40 |
40 |
51 |
43 |
3 |
42 |
42 |
55 |
45 |
4 |
44 |
44 |
59 |
47 |
5 |
46 |
46 |
63 |
49 |
6 |
48 |
48 |
68 |
51 |
7 |
50 |
50 |
73 |
53 |
8 |
52 |
52 |
78 |
55 |
Our tracksuits sizes run fairly closely with ages in years for average sized kids. If on the cusp, we would recommend sizing up, as the style is oversized so it still looks great and will get another season or two out of the tracksuit.
Any questions please don't hesitate to contact hello@avaly.au or contact us via our pop up on the website.

Introducing the Cottesloe, our versatile children's wetsuit featuring a bold light blue striped pattern on the top and around the legs, and a complementary light blue colour on the bottom. This stylish design is perfect for boys and girls, crafted with a commitment to protect our planet while keeping your little ones looking irresistibly cute.
Suitable for beach outings year-round, the Cottesloe is created from sustainable, FSC-certified natural rubber. Our eco-friendly approach sets us apart from traditional kids' wetsuits made from petroleum or limestone neoprene.
Key Highlights of Our Cottesloe Children's Wetsuit:
- 90% natural rubber, 10% nylon for an eco-friendly alternative
- 2mm thickness for optimal comfort and flexibility
- SPF 50 +
- Easy back zip entry
- Flatlock stitched external seams for softness, flexibility, and durability
- Strategically panelled body and sleeve for a perfect fit
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Free shipping on all orders within Australia and express shipping available for $15.






Our third purchase and not to be slept on! Early morning swims in autumn, plus onwards will make this a staple when swimming in the cooler parts of the day or year! The design with the zips at wrists and ankles is a game changer!
Bought our first Avaly suit in April 2023 and it’s still going strong! passed down the line to cousins, it’s withstood countless swims and rolls in the sand.
We loved it so much, we bought the next size up in the same print.
The zippers on the feet and hands make changing post swim easy and I love how cute this print is.
This was the first wetsuit I bought for my son and have since bought one for my daughter plus the next size up so we’re all set for next year. We pop them on for swimming lessons (in our unheated pool) so the kids can enjoy their lesson for longer! The quality is exceptional and the designs are beautiful (this sage colour might be my favourite!)
This is now my 5th avaly wetsuit purchase. I have 3 kids and continue to buy the size up. The quality is second to none, they last FOREVER (my eldest’s original one has made it down the line twice and I have now passed it onto my nephew), and the prints/colour are so vibrant and beautiful. Thank you Alyssa for making such a great sustainable and functional product!
Beautiful quality and gorgeous design. Absolutely love the long arm and long leg- keeps the kids safe from the sun and warm for a full day at the beach. A local brand doing great things.
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