Cressi Rocks Adjustable Fins Size Chart
Fit note: Packaging: S/M [3–5] and L/XL [6–10] match the approximate age ranges in Cressi’s chart.
Fit note: Choose by measured foot length first. Ages are approximate; they are not shoe sizes.
Fit note: Cressi specifies barefoot use for Rocks. Adjust the heel strap for a comfortable, secure fit.
How to measure your foot
- Place paper on a hard floor against a wall. Stand barefoot with your heel gently touching the wall.
- Keep your weight on the foot and mark the end of your longest toe, holding the pencil upright.
- Measure from the wall to the mark in centimetres. Measure both feet and use the longer measurement.
Foot length in centimetres is the best starting point, followed by EU sizing, then US sizing.
Size guide based on Cressi sizing information.
| Fin size | Foot length (cm) | EU | US children | UK children | Approx. age |
|---|---|---|---|---|---|
|
S/M
|
16-20
|
26-32
|
9.5-13.5 K
|
8.5-12.5 K
|
3-5 years
|
|
L/XL
|
20-24
|
32-38
|
1-6 Y
|
13 K-5 Y
|
6-10 years
|
Cressi Rocks Kids’ Snorkelling Fins – Blue
Original price was: $39.95.$38.99Current price is: $38.99. inc. GST
A pair of Cressi Rocks kids’ fins in blue with soft rubber foot pockets, adjustable heel straps and vented composite blades. Designed for bare feet; use the foot-length chart and check fit rather than choosing by age alone.
Clearance item — please choose carefully.
This item is excluded from change-of-mind refunds and exchanges. Check size and suitability before ordering.
Read our returns policy. Need sizing help? Call 03 9702 3694.
SKU:
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Cressi Rocks adjustable kids’ snorkelling fins
The Cressi Rocks fins in blue are a compact choice for children’s snorkelling. Soft rubber foot pockets, adjustable heel straps and vented composite blades give young snorkellers a straightforward pair of fins for family beach trips and holidays.
Supplied as one pair of fins. Choose the fin size from the available options; these fins are designed to be worn barefoot.
Features and benefits
- Soft rubber foot pocket: provides a flexible contact surface around the foot for barefoot comfort.
- Adjustable open heel: lets you set the strap tension within the selected size range as the child’s fit changes.
- Release buckles and a wide pull loop: help with putting the fins on and taking them off.
- Vented composite blade: combines a short, manageable blade with openings that help water move through it during a kick.
- Two junior size ranges: let you choose according to foot length instead of relying on age alone.
Size guide and approximate ages
Please check the Cressi Rocks fin size chart and measure both feet before choosing. Use foot length as the main guide, then check the actual fit.
| Fin size | Foot length | EU | UK | US | Approximate age |
|---|---|---|---|---|---|
| S/M | 16–20 cm | 26–32 | 8.5–12.5K | 9.5–13.5K | About 3–5 years |
| L/XL | 20–24 cm | 32–38 | 13K–5Y | 1–6Y | About 6–10 years |
Age ranges are a guide only; individual fit varies. K and Y identify children’s and youth shoe-size numbering. A child’s age does not establish their foot length. Do not choose a loose fin just to leave growing room.
How to measure and check the fit
Have the child stand with their heel against a wall. Mark the longest toe and measure the distance from the wall in centimetres. Measure both feet and use the longer measurement. With the fin on a bare foot, adjust the strap so the fin feels secure without pinching or excessive pressure. Try the fit before entering the water; if the foot sits between size ranges, ask us for advice.
Technical specifications
| Specification | Details |
|---|---|
| Fin model | Cressi Rocks |
| Colour | Blue |
| Supplied as | One pair |
| Fin use | Children’s recreational snorkelling |
| Fin style | Adjustable open heel |
| Fin footwear | Bare feet |
| Foot pocket material | Soft rubber |
| Blade design | Vented composite construction |
| Strap type | Adjustable, with release buckles and pull loop |
| Fin length | S/M 34.8 cm; L/XL 37.9 cm |
| Fin width | S/M 17.0 cm; L/XL 17.7 cm |
| Fin sizing | S/M: foot length 16–20 cm, EU 26–32; L/XL: foot length 20–24 cm, EU 32–38 |
| Fin fit | Choose by foot length and a barefoot fitting; ages are approximate guides only. |
Choosing a complete pack
These fins are available in Cressi Baron Junior and Rocks snorkelling packs. Mask fit is separate from fin size, so check the child’s face shape and the mask guide as well as foot length.
Care and storage
Rinse the fins, buckles and straps in fresh water after each use. Dry in the shade, store the blades flat and keep them away from heat or heavy objects. Check the straps and buckles before a trip. Children need close adult supervision while snorkelling.
| Fin Size | S/M, L/XL |
|---|
Official manufacturer instructions for this product.
Cressi Fins User Manual
Read the manual before use. For firmware updates, follow the manufacturer support link. Our team can help during business hours.
In-stock orders placed before 12 noon Melbourne time on weekdays are usually dispatched the same day once payment is confirmed. This excludes public holidays, pre-orders, backorders, special orders and custom orders. Dispatch times can vary. Delivery time depends on the carrier and your location.
Standard mainland Australian shipping is $20. Click & Collect from our Hallam store is free once your order is ready.
- Large or bulky gear: additional freight charges apply on top of standard shipping: large dive bags $30; long freediving fins $15; long spearguns $20. Scuba tank freight is shown at checkout.
- Rural, remote & offshore: rural means anywhere outside metropolitan areas. Carrier availability and additional charges may apply, including for island and territory destinations. Our team will contact you if an extra freight quote is needed.
The available delivery rate for your order is shown at checkout.
Need your gear urgently? You are welcome to arrange your own same-day courier or Uber pickup from Hallam. Call 03 9702 3694 before booking so we can confirm payment, that your order is packed and ready, and a collection time. Tell us who will collect and give your driver the order number. You arrange and pay the courier directly; delivery timing depends on the provider.
Contact us within 30 days of delivery to request a refund, exchange or optional store credit on eligible unused goods within Australia. Refunds go to the original payment method. Keep goods clean and undamaged with tags, original packaging and all accessories. No restocking fee applies to eligible returns meeting these conditions.
For change-of-mind returns and size exchanges, you pay return postage and replacement shipping. Original delivery charges are not refunded. Water-tested goods, clearly marked clearance items and genuinely custom-made or personalised items are excluded from change-of-mind returns. Ordinary discounted goods remain eligible.
For product problems, please call 03 9702 3694 before returning an item so we can help and explain the next steps.
Still unsure which size to choose?
Call our experienced dive instructors on 03 9702 3694 before ordering. Have your measurements and preferred product ready so we can help you choose the most suitable size. Fit varies between brands and models.
FREE CLICK & COLLECT
Usually ready same day*
Select local pickup at checkout. We will email you when your order is ready. Please wait for your ready-to-collect confirmation before visiting, then bring your confirmation email and photo ID.
Need your gear urgently? You can arrange your own same-day courier or Uber pickup. Call 03 9702 3694 before booking so we can confirm payment, that your order is packed and ready, and a collection time. Tell us who will collect and give your driver the order number. You arrange and pay the courier directly; delivery timing depends on the provider.
Collect from our Hallam store
Factory 4 / 56–60 Hallam South Rd
Hallam VIC 3803
*For items in stock at our Hallam store during opening hours, subject to order processing. Available-to-order and special-order items take longer. Collection is unavailable while the store is closed.
Can I collect my order from the store?
Yes. Choose free local pickup at checkout and wait for your ready-to-collect email before visiting our Hallam store. Bring your confirmation and photo ID. See Click & Collect details.
How do I choose the right size?
Use the product's size chart where available and compare your measurements with the guide for that brand. Sizing varies between brands and products. Still unsure? Call our experienced dive instructors on 03 9702 3694 during business hours before ordering. Have your measurements and preferred product ready. For fins and boots, tell us which socks or dive boots you will wear.
How do I check availability?
Select your required options, such as colour and size, to see availability for that variation. “Available to order” means the item may need to be sourced before dispatch. Call 03 9702 3694 to check the current lead time before ordering, especially if you need your gear for a trip or a particular date.
When will my order be dispatched?
In-stock orders placed before 12 noon Melbourne time on weekdays are usually dispatched the same day once payment is confirmed. This excludes public holidays, pre-orders, backorders, special orders and custom orders. Dispatch times can vary. Delivery time is separate from dispatch time and depends on your location and the carrier. Read our shipping information.
Can I exchange an item if it does not fit?
Contact us within 30 days of delivery to request a refund to the original payment method, exchange or optional store credit on eligible unused goods. You pay change-of-mind return postage and replacement shipping; original delivery charges are not refunded. No restocking fee applies to eligible returns. Clearance and genuinely custom-made items are excluded from change-of-mind returns. Read the return conditions and next steps.
Can you help me choose the right gear?
Yes. Call 03 9702 3694 during store hours or email [email protected]. Tell us which product you are considering and how you plan to use it.
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