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Description
xThe Swim Fin Energy is specifically designed to develop a stronger, more effective kick. Greater propulsion through the water is the direct result, helping you move faster and more efficiently in every session. Whether you are drilling or doing full-length sets, the fin translates effort into meaningful speed gains.
The advanced design encourages correct kicking technique whilst simultaneously enhancing muscle development. Rather than simply adding speed, the fin trains your body to move with better form. Over time this builds the strength and motor patterns needed for a more powerful freestyle or backstroke kick.
The closed pocket design keeps the fin firmly in place throughout your training, eliminating the distraction of a loose or shifting fit. High grade polypropylene gives the blade the right balance of rigidity and flex. The result is a fin you can wear for a full session without discomfort.
Not sure on sizing? See our Zoggs Swim Fin Energy Size Guide or ask our swimwear experts for advice.
← Scroll to see all sizes →
| Size | 34 | 36 | 38 | 40 | 42 | 44 | 46 |
|---|---|---|---|---|---|---|---|
| EU | 34–35 | 36–37 | 38–39 | 40–41 | 42–43 | 44–45 | 46–47 |
| UK | 3–4 | 4–5 | 5–6 | 6–7 | 8–9 | 9.5–10.5 | 11–12 |
All measurements are body measurements, not garment measurements. For further guidance view our full size guide or ask our swimwear experts.
The Energy is designed with an advanced blade shape that encourages correct kicking technique at the same time as building muscle. Many basic fins simply add speed. This one is built to train your kick mechanics and develop strength simultaneously, making it useful for swimmers focused on improving their stroke rather than just covering distance faster.
Zoggs produce these fins in a range of sizes to suit different foot sizes. Please refer to our Zoggs Swim Fin Energy Size Guide to find the best fit for you. A snug closed pocket fit is important for comfort and to keep the fin secure throughout your session.
Yes. The closed pocket is designed to hold your foot securely without unnecessary pressure or rubbing. The high grade polypropylene construction gives a consistent fit, and many swimmers find closed pocket fins more stable than open heel designs during extended kick sets.
Absolutely. The Swim Fin Energy suits a wide range of swimmers, from beginners learning to develop their kick to more advanced swimmers using them as a drill tool. Because the design actively encourages correct technique, it is particularly useful for those still refining their kicking action.
View our full product aftercare guide to ensure you look after your kit properly.
Allens Swimwear is a family-run business founded in 1976 by Dennis Allen and his daughter Linda Beal. It started from a genuine need. “With 2 swimmers in the family it was often difficult to find the right kit, so dad and I took the plunge and started selling to local swimmers at our local pool in Kingsbury out of a suitcase and we’ve never looked back.” Today, Linda, her husband Richard, and three of their children Danny, Will and Jenna still run the business together. The suitcase may be long gone, but the founding principle of helping swimmers get the right kit remains exactly the same.
Shipping & Returns
xUK Delivery Options
🚚 Free UK Delivery
Free delivery on all orders over £40
For orders below £40, delivery charges will be displayed at checkout.
The total order value, including any deals or discounts (such as a discount code), must be over £40.
📮 Royal Mail
📦 UPS
🚀 DHL Courier
🏪 In Store Collection
Free in store collection is available. Simply choose this option at checkout and pick up your order at our store.
🕐 Delivery Times
EU Delivery Options
✈️ FedEx
International Delivery Options
🌍 International Shipping
📮 Royal Mail
🚀 DHL Courier
Important Information
FAQs
We offer several delivery options, including Standard Delivery, Express Delivery, and International Shipping.
Delivery times depend on the option you choose at checkout. Standard Delivery typically takes 2–3 days, while Express Delivery is usually delivered within 1–2 days. International delivery times may vary by location.
Delivery costs vary based on the shipping method and destination. Standard delivery starts at £4.99, and express delivery starts at £14.99. International shipping rates are calculated at checkout.
Yes, we offer free delivery on orders over £40. Terms and conditions apply.
Yes, once your order is dispatched, you'll receive a tracking number via email to monitor its progress.
Yes, we deliver to many countries worldwide. Delivery times and costs for international orders are shown at checkout.
If your order hasn't arrived within the estimated timeframe, please contact us with your order number, and we'll assist you.
If you're not available, the courier will typically leave a card with instructions on how to rearrange delivery or collect your parcel.
We can make changes to your delivery address if your order hasn't been dispatched. Please contact us as soon as possible.
If your order arrives damaged or is incomplete, please contact our customer service team as soon as possible with photos and your order number, and we'll resolve the issue promptly.
Currently, we don't deliver to PO Boxes and BFPO addresses. Please check specific delivery options at checkout.
For express or special deliveries, you may be able to select a preferred delivery date at checkout.
Returns Policy
We offer a free returns service. We advise that customers keep either proof of posting or a receipt as we cannot be held accountable for items lost being returned to us.
Please note that this returns policy does not cover items such as special order swimwear, customised products and products ordered specifically at the request of a customer. Products such as these cannot be returned (unless faulty).
Free UK Returns
If you are unhappy with your purchase for any reason, then we will gladly refund you within 28 days of purchase. Simply click on the link below to begin the returns policy:
ALLENS OF KINGSBURY RETURNS
Returns outside of the UK are at the buyer's cost. Please return to us at the address below.
Please ensure that you have completed a CN22 Customs declarations form and that this has been clearly marked as being Returned Goods. Please mark the return parcel on the outside clearly as returned goods. Failure to do this could result in Customs charges being applied to the parcel on its return. I regret we cannot accept parcels with customs duties and charges payable — these will be returned to sender.
Non-Faulty Goods
Please return items with the original packaging if possible and to keep hygiene seals on suits, please also include a copy of the invoice received clearly stating on this that you would like a refund for the return.
Please note that we will not accept non-faulty items back that have been worn or without their relevant packaging, labels or stickers.
If you would like to exchange an item for an alternative size, style or item please follow the link to us along with a copy of your invoice, please note on the invoice what item is required as an alternative.
Faulty Goods
In the case of faulty goods, please contact us and provide details of the nature of complaint along with photos and the date of purchase and the care given to product.
In all cases of complaint we will endeavour to substitute faulty goods with an identical replacement, or substitute the goods with ones of similar value. This does not affect your statutory rights, and you may of course choose to have a complete refund if you are not 100% happy.
How to Return an Item
If you have any questions about delivery, please contact us.
Size chart
The Zoggs Swim Fin Energy is an advanced training fin designed to help develop a stronger kick for increased propulsion through the water. The fin’s design encourages correct technique whilst simultaneously enhancing muscle development. A closed pocket design provides a secure and comfortable fit, and the fin is made from high-grade polypropylene for durability during regular training use.
Sizing is based on EU shoe size. UK equivalents are also shown. Select the size range that includes your shoe size.
| Size | 34 | 36 | 38 | 40 | 42 | 44 | 46 |
|---|---|---|---|---|---|---|---|
| EU | 34–35 | 36–37 | 38–39 | 40–41 | 42–43 | 44–45 | 46–47 |
| UK | 3–4 | 4–5 | 5–6 | 6–7 | 8–9 | 9.5–10.5 | 11–12 |
EU shoe size is the primary reference. UK equivalents are shown as a secondary guide. Select the size column that includes your shoe size. If between sizes, size up for a more comfortable fit.
Find your EU shoe size in the top row of the size table above and select the corresponding column. UK equivalents are shown in the row below. If your shoe size falls between two columns, size up for a more comfortable fit.
The Zoggs Swim Fin Energy is an advanced training fin designed to develop a stronger, more powerful kick. The fin encourages correct kicking technique whilst building the leg muscles used in swimming. It is suitable for pool training and can be used across all four strokes.
Polypropylene fins are firmer and more rigid than silicone fins. This additional stiffness creates more resistance and load on the legs during training, which can help build kick strength more quickly. Silicone fins are more flexible and provide a more natural kick feel. The choice between the two depends on whether the primary goal is strength development or technique refinement.
A closed pocket fin encases the foot in a fixed foot pocket rather than using an open heel and strap system. The foot slides in from the front and is held securely by the pocket walls. This design provides a more consistent fit during training as there are no straps to loosen or adjust, and the fin cannot slip off during kicking.
Yes. The Swim Fin Energy is designed to improve technique and aid muscle development at all levels. Beginners can benefit from the fin’s resistance during kick sets, while more experienced swimmers use it to build power and strength. The correct technique benefit makes it particularly useful for swimmers who are still developing their kick mechanics.
Rinse in cold fresh water after every session to remove chlorine and debris. Allow to dry naturally away from direct sunlight — prolonged UV exposure can degrade polypropylene over time. Store flat and away from sharp objects. Check the foot pocket periodically for any signs of cracking or wear.
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