
Description
Run, Jump, Play: Nike Flex Runner
Laceless Bootie Freedom & Deep-Groove Flex Soling: The Nike Flex Runner 3 Juniors' Running Shoes "Midnight Navy / White" Empower energetic kids to get out the door instantly with a featherweight, slip-on sneaker engineered for uninhibited movement across schoolyards and playgrounds. The FN1294-403 arrives in a clean "Midnight Navy" bootie chassis—accented with crisp "White" Swoosh branding, pull tabs, and a sculpted multi-flex foam sole unit. Built without traditional laces to foster independence for young athletes, this third-generation design pairs a foot-hugging stretch textile collar with deep multidirectional flex grooves to support natural foot development during running, jumping, and climbing.
Benefits: Engineered for physical education classes, playground games, after-school sports, and effortless daily school wear, this junior shoe prioritizes rapid entry, barefoot-style flexibility, and breathable airflow. The stretchy slip-on bootie eliminates the frustration of untied laces or tripping hazards, letting kids gear up in seconds. Its pliable foam sole bends and twists in tandem with the foot's natural mechanics, ensuring low-profile impact absorption without the stiffness or weight of traditional running trainers.
Key Features:
-
Laceless Slip-On Bootie Construction: Stretchy, foot-conforming textile upper equipped with reinforced dual front-and-rear pull tabs, enabling children to easily pull the shoes on and off independently.
-
Deep Multidirectional Flex Grooves: Soft EVA foam outsole engineered with laser-siped grooves running across and along the sole, allowing full range of motion and natural toe articulation.
-
High-Airflow Breathable Mesh: Lightweight, open-cell engineered mesh distributed across the vamp and quarter panels to vent heat and keep active feet cool throughout the school day.
-
Integrated Protective Toe Wrap: Midsole foam extends upward around the front bumper, delivering abrasion resistance against toe-dragging, kick-scuffs, and concrete friction.
-
Lateral Leather & Synthetic Midfoot Wings: Supportive side panel overlays integrated with internal elastic bands to gently cradle the arch and prevent foot slippage during lateral cuts.
-
Seamless Padded Collar: Smooth, sock-like ankle entry designed to prevent blister-causing friction against young ankles, whether worn with ankle socks or barefoot.
Product Details:
-
Product Name: Nike Flex Runner 3 Juniors' Running Shoes
-
Silo: Nike Running / Flex Runner Juniors' Platform
-
Category: Juniors' Running-Inspired Slip-On & Multi-Activity Footwear
-
Colourway: Midnight Navy / White
-
Style Code: FN1294-403
-
Upper Material: Stretch Breathable Mesh with Synthetic Structural Overlays
-
Midsole / Outsole: One-Piece Flexible Injected Unitsole Foam with Deep Flex Grooves
-
Fastening: Laceless Elastic Slip-On Design with Dual Pull Tabs
-
Profile: Low-Top Lightweight Junior Trainer
Buyer Guidance & Fit Profile:
-
Who This Product Is Best Suited For: Ideal for active children, parents seeking hassle-free school footwear, and junior athletes who require a lightweight, bendable shoe for gym class, tag, and outdoor play. Coordinates cleanly with school uniform track pants, fleece shorts, athletic leggings, and casual everyday tees. Not engineered as a heavy-duty mud shoe for wet cross-country trails or a rigid court shoe for competitive indoor tennis.
-
Fit & Sizing Determination: Fits True to Size (TTS) in standard Nike junior/kids' sizing. The elasticated bootie offers a snug, sock-like hold to keep the shoe secure on the foot without laces. If the young wearer has particularly wide feet or a high instep (tall arch), consider ordering half a size up (0.5 size up) to make slipping the shoe over the foot easier and to avoid excessive tightness across the bridge.
-
Care & Maintenance Recommendation: To protect the structural elasticity of the bootie collar and prevent the foam unitsole from shrinking, do not wash in a washing machine or dry in a tumble dryer; wipe away playground dirt, grass stains, and mud using a soft microfiber cloth or soft nylon brush dipped in lukewarm water and mild, bleach-free detergent; avoid abrasive scrubbers that could snag the mesh fabric; remove the footbeds to air out separately; allow the shoes to dry naturally at room temperature in a well-ventilated space away from direct radiators, heating vents, or harsh sunlight to ensure the upper retains its elasticity and shape.
Payments

Do You Accept Payment Over The Phone?
Yes, if you would like to pay for your item over the phone then please call us on 0161 336 2595 and we will have someone talk you through the process and complete your transaction. Please have all card details with you for a quicker and easier payment.
Are My Details Secure?
Absolutely! Trade Sports uses a 128-bit SSL certificate on the checkout page supplied by and kept up to date by Shopify to ensure that all customer information is kept secure and private at all times. We also use PayPal and Shopify Payments so you can rest assured that any private or sensitive information is safe.
Returns
Returns Policy
You have 30 days from the date of delivery to return any products that you bought from us at Trade Sports.
Eligibility for Returns
- Must be returned within 30 days from the original date of delivery
- Products must be returned in their original packaging
- Footwear boxes cannot be taped up and must be returned inside a mailbag
- All original product tags must be included
- All items must be returned unused and unwashed
- Include a correctly filled out returns form and your original shipping label for identification
How to Return an Order
Returns just got easier
- Login to your account using this link
- We include an invoice with an area to fill in your order for an exchange or refund, if you don't have you can use this alternative
- For our UK customers you can return your order using our Royal Mail returns label by clicking here
- The cost of the label is £3.00 and will be deducted from your refund.
Exchanges
To exchange an item for a different size or colour, fill out the returns form specifying your desired exchange details. We'll process your exchange upon receipt, subject to stock availability, or otherwise offer a refund.
Refunds
Upon receiving and inspecting your return, we'll process your refund and notify you via email. Allow a few days for the funds to clear into your account. Processing times may vary.
Shipping Costs & Refunds
- Express delivery fees are non-refundable.
- EU customers receive full cost refunds including postage.
- Using your own returns label means we cannot refund that postage cost.
Returns Label Policy
A free returns label is provided if we're at fault. Otherwise, labels are not provided free of charge.
Damaged, Defective, or Incorrect Items
If you receive a damaged, defective, or incorrect item, contact us at sales@tradesports.co.uk for a free returns label. Using your own returns method means we cannot refund that postage. Note: Free returns are not available for overseas customers due to high return costs.
Related products
Recently viewed products
- Choosing a selection results in a full page refresh.
- Opens in a new window.