VJ Sport FZN Aerofly Trail Running Shoe

The VJ FZN Aerofly is a comfort-focused road-to-trail running shoe designed for runners who prefer a softer, more forgiving ride. Ideal for easy runs, run commutes and multi-surface adventures, it combines the smooth transition of a road shoe with the grip and stability needed for mixed terrain. As part of the Fuzion collection, the Aerofly allows you to move from asphalt to trail without breaking rhythm.

Underfoot, an extremely light rubber outsole with dense 3 mm lugs provides reliable traction off-road while maintaining durability and ground feel on tarmac. The generous 38/30 mm stack height delivers enhanced cushioning for longer miles and ultra-distance efforts, yet at 245 g it remains responsive enough for steady-paced sessions across varied surfaces.

Cushioning is provided by SuperFOAMance, a soft, bouncy, nitrogen-infused midsole compound engineered to deliver high energy return with less weight and greater responsiveness than traditional EVA. Embedded within the midsole is a full-length branched rock plate, adding torsional rigidity, reducing energy loss and improving stride efficiency while protecting against rocks and uneven ground.

The lightweight, multi-zone engineered mesh upper balances durability and breathability, draining water quickly to keep the shoe light in wet conditions. A soft anti-slip heel construction secures the foot without unnecessary pressure, while the VJ Fitlock system stabilises the midfoot and supports the arch when the terrain becomes more technical. With a unisex fit (Fit Scale 4), the VJ FZN Aerofly is built for runners seeking comfort, versatility and control across mixed terrain.

SuperFOAMance midsole

SuperFOAMance is a nitrogen-infused midsole compound engineered to provide a softer, more cushioned ride with high energy return. Lighter and more responsive than traditional EVA, it delivers consistent rebound and efficient turnover across road and mixed terrain surfaces.

Light and grippy

An extremely lightweight rubber outsole with dense 3 mm lugs offers reliable traction off-road while maintaining durability and ground feel on asphalt. The balanced tread design ensures confident grip without compromising smooth transitions on harder surfaces.

Light & breathable

The multi-zone engineered mesh upper combines low weight with targeted durability and ventilation. Quick-draining and highly breathable, it helps keep the shoe light and comfortable during longer efforts and in wet conditions.

• Activity: Road-to-trail (Mixed terrain), Ultra running
• Fit Scale: 4
• Gender: Unisex
• Stack height: 38/30mm
• Outsole: Lightweight rubber
• Upper: Multizone engineered mesh
• Lug Depth: 3mm 
• Weight: 245g

FREE 3-5 Day Royal Mail UK Delivery 

1-2 Days Royal Mail for Only £3.99

Faster Options Available

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Full Delivery Details

UK (incl. Channel Islands): Free 3-5 Days Royal Mail

Dispatched the same day if placed before midday Mon-Fri, the majority of orders are sent Royal Mail 2nd Class Post, except for bulky or heavier items, which may be with a different service.

 UK (incl. Channel Islands): Faster Options

- 1-2 Days Royal Mail First Class (or courier for bulky items) usually next working day when ordered before midday Monday-Friday but quote is 1-2 days: £3.99

- Next Business Day DPD (UK mainland only, excludes Scottish Island, Highlands and weekends and Public Holidays) : £6.99 (Ts & Cs below)

The DPD Next Day delivery postage option guarantees next working day delivery as long as the order is placed before midday Monday to Friday. We cannot dispatch orders on weekends so orders received after midday on a Friday would leave in Mondays post for delivery on Tuesday. There is also no guaranteed next day delivery on weekends so Next Day Delivery orders dispatched on a Friday may not be delivered until Monday. In most cases a 1st Class post order shipped on Friday will be delivered on a Saturday. The delivery must be signed for on receipt. Items shipped using this delivery method are easier to trace if they go missing in the post.

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Returns

(Items bought as Christmas presents that where purchased online over 30 days before Christmas can be returned for an exchange up to the 31st January), provided they are returned unused and with the original tags intact.

You have a right to cancel your order for any item purchased through our website with or without reason, under the distance selling regulations for refund. If you are unhappy with your purchase items can be returned in an unused re-sellable condition for replacement or refund within 30 days.

We advise customers to try the shoes in the house for approximately one or two hours to make sure you are happy with the fit.  If you are not happy with the fit when trying the shoes indoors, please return them to us and we will either refund or exchange.  We are unable to accept returned shoes that have been worn outdoors, unless there is a manufacturing fault or defect with the shoe.

Our returns address is:
Northern Runner,
52, Low Friar Street,
Newcastle-upon-Tyne,
Tyne and Wear.
NE1 5UE

Customers may choose whichever courier is more cost effective for themselves.

Faulty returns must be sent back for inspection before a refund will be issued. If the product is found to have a defect you will be offered a refund or exchange (if available). Refunds will ONLY be given for damaged goods where no replacement product can be supplied. Damage due to normal wear and tear, misuse, alteration to the product, or negligence is not covered under our returns policy and refund will not be given.

Returned goods must be adequately sealed in original packaging. On returning items the original packaging should also be returned undamaged and as received. This must be wrapped in an extra outer layer. Failure to do so could result in only a partial refund being issued.

SUSPECTED FAULTY SHOES SHOULD BE RETURNED CLEAN AND DRY. Shoes that come back to us in a state unfit for our staff to inspect will be kept at our premises until you can arrange for them to be picked up or until you have paid the postage to return the item to you. Please note this is a health and safety issue we take seriously.

Please ensure you ask for a certificate of posting as proof you have sent the package. You are responsible for the item until we receive it therefore we suggest you return the parcel using Royal Mail Recorded (Signed For) Delivery or similar. We will not refund the postage paid by the customer on unwanted returned items or sizing issues (so please contact us regarding sizing prior to ordering if you are unsure).

Goods purchased online cannot be returned to the shop.

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We will not sell, trade or rent your details to any third parties.

The privacy of our online and offline customers is extremely important to us. We only use the information we collect about you lawfully, in accordance with the Data Protection Act 1998.

We collect chosen personal information about you (name, address, telephone number, email) when you join our email list or mailing list.