The Nike Air VaporMax 2021 Flyknit Big Kids’ Shoes are not just another pair of athletic sneakers—they are a perfect fusion of sustainability, innovation, and performance. Designed for growing feet, these shoes bring Nike’s cutting-edge VaporMax technology to younger wearers, delivering high energy return and bold visual appeal in every step.
Whether you’re shopping for an athletic child, a young sneaker enthusiast, or just a pair of shoes that combine comfort with everyday wearability, this review covers all the essential details—from design and features to fit, performance, and who they’re best suited for.
Product Overview
- Brand: Nike
- Model: Air VaporMax 2021 Flyknit (Big Kids)
- Colorway: Often features multicolor accents with translucent sole
- Upper Material: Nike Flyknit (recycled content)
- Midsole: Full-length VaporMax Air unit
- Outsole: Rubber pods for traction
- Closure: Traditional lacing system
- Category: Athletic lifestyle sneaker
- Intended Audience: Big Kids (Grade School sizes)
Design and Aesthetics
The Nike Air VaporMax 2021 Flyknit Big Kids’ Shoes bring a futuristic, eye-catching design that instantly sets them apart from traditional sneakers. The upper is constructed with Nike’s Flyknit fabric, giving it a flexible, sock-like fit while incorporating recycled materials as part of Nike’s Move to Zero initiative.
Flyknit Upper with Sustainable Construction
The Flyknit upper features a lightweight woven design, offering breathability and support where kids need it most. The knit pattern also incorporates multiple colors in many variants, giving the shoe a dynamic, textured appearance. This construction not only hugs the foot for a snug fit but also ensures lightweight performance and eco-conscious appeal.
Sleek Silhouette and VaporMax Sole
One of the most striking aspects of this shoe is the full-length VaporMax sole unit, made of pressurized air pods that provide visible cushioning. The see-through design adds a futuristic vibe to the shoe, making it a favorite among kids who love bold, modern looks. The sole is also elevated slightly, giving the shoe a bounce-like feel and a sporty profile.
Branding and Details
Nike branding appears subtly across the shoe—on the tongue, heel tab, and lateral sides—without overwhelming the clean design. The pull tabs on the heel and tongue add convenience for easy on and off, especially for active kids on the go.
Comfort and Fit
Nike designed these shoes with growing feet in mind, prioritizing flexibility, comfort, and shock absorption.
Cushioned VaporMax Sole
The standout comfort feature is the full-length VaporMax air cushioning. This unique design distributes pressure evenly and provides a springy feel that reduces foot fatigue, whether kids are walking, running, or playing. The air pods compress and rebound with each step, creating a trampoline effect that feels soft yet responsive.
Breathable, Sock-Like Fit
The Flyknit upper stretches naturally with the foot, allowing for a customized fit without tightness. The upper is breathable, making these shoes suitable for warm weather or indoor activities. The interior is smooth, with no stiff seams to cause irritation.
Lightweight Feel
These sneakers are exceptionally lightweight, which is important for children who are active throughout the day. The combination of minimal upper material and the hollow cushioning system ensures that the shoes don’t feel heavy or clunky.
Performance and Durability
Though primarily a lifestyle sneaker, the Nike Air VaporMax 2021 offers surprisingly solid performance for kids who are constantly on the move.
Traction and Grip
The outsole is reinforced with rubber pods in high-impact areas, delivering decent traction on a variety of surfaces—pavement, gym floors, playgrounds, and more. While they’re not intended for competitive sports, they do hold up well under typical kid use: running, climbing, jumping, and daily walking.
Flexibility and Responsiveness
The combination of Flyknit and VaporMax cushioning allows the shoe to move naturally with the foot, promoting healthy stride development. It’s a great choice for kids who need a shoe that adapts to changing activity levels throughout the day.
Everyday Durability
Despite its lightweight and airy build, this shoe is more durable than it looks. The Flyknit weave resists fraying, and the sole is constructed with resilient materials that hold up over time. However, it’s recommended to avoid using them in harsh conditions like hiking trails or heavy rain, as they are not waterproof or built for rugged terrain.
Sustainability Features
Nike’s Move to Zero campaign plays a big role in the design of the VaporMax 2021. The Flyknit upper is made from recycled polyester, and the overall shoe contains at least 20% recycled content by weight. For eco-conscious families or those looking to teach kids about responsible consumption, this adds extra value to the purchase.
Pros and Cons
✅ Pros
- Visually striking design that kids love
- Full-length VaporMax cushioning offers excellent comfort
- Lightweight and breathable Flyknit upper
- Flexible and responsive for all-day wear
- Sustainable materials used in construction
- Pull tabs for easy wear
- Versatile for school, casual play, and light athletic use
❌ Cons
- Not waterproof – not ideal for rainy days
- Premium pricing due to advanced technology
- Limited support for competitive sports
- May run narrow for kids with wider feet
- Clear soles may yellow over time with dirt exposure
Who Is This Shoe Best For?
The Nike Air VaporMax 2021 Flyknit Big Kids’ Shoes are ideal for:
- Style-conscious kids who want modern, trendy sneakers
- Active children who need lightweight shoes with all-day comfort
- Parents seeking breathable, eco-friendly footwear
- Kids involved in moderate sports or school gym class
- Gift buyers looking for high-end, fashion-forward sneakers
This model is especially great for back-to-school shopping, birthdays, or special events when you want a standout shoe that combines functionality with flair.
Final Verdict
The Nike Air VaporMax 2021 Flyknit Big Kids’ Shoes bring advanced Nike tech to a younger audience with a design that’s both visually impressive and supremely comfortable. With its futuristic look, full-length cushioning, and eco-conscious construction, it stands out as a premium choice for kids’ everyday wear.
While it’s not made for intense sports or inclement weather, it performs beautifully in casual and semi-active settings. For families looking to invest in footwear that blends comfort, sustainability, and next-generation design, this pair is a worthy contender.