Interlock - iPhone Air Case
ESSENTIALS
• CASETEROID Special: Buy 4 Phone Cases—Pay For 2 | No Code Needed
Raised Bezel Screen Protection
Shock Absorption
All Ports Accessible
High-Quality Print
Responsive and Protected Buttons
Hard Shell+TPU interior
RECOMMENDED FOR YOU
We Think You'll Love
Introducing Interlock - iPhone Air Case, a protective shell built for real life. At the heart of its design is the Interlock system—a modular, snap-fit architecture that combines a flexible bumper with a rigid back panel. The result is a single, secure unit that absorbs and redirects impact while preserving a slim, everyday profile.
Why Interlock stands out
The interlocking mechanism isn’t just cosmetic. When your device faces bumps or minor drops, energy is guided through the bumper and back panel, helping to protect the chassis and screen from common mishaps. This means you can go about your day with fewer worries about everyday accidents.
- Slim, pocket-friendly footprint that doesn’t sacrifice protection
- Ergonomic, non-slip grip on the sides for confident handling
- Raised bezels to safeguard the screen and camera lenses without obstructing use
- Clear, scratch-resistant back that lets your iPhone color shine through
- Precise cutouts for seamless access to ports, buttons, and speakers
- Durable finish that resists wear, keeping its look over time
Who is Interlock ideal for?
If you want reliable protection without added bulk, Interlock is tailored for you. It’s perfect for daily commuters who brush past crowds, students hustling between classes, parents juggling devices and gadgets, or professionals who rely on their phone throughout a busy day. This case blends practicality with a refined, understated style.
Practical use cases
Commuter protection: a protective shell that remains light in your pocket while staying ready for the daily rhythms of city life. Travel between meetings? Interlock’s secure, cohesive design travels with you, resisting scratches and maintaining grip in busy environments. Outdoor errands, café runs, or weekend adventures—this case keeps your phone accessible, protected, and easy to handle in the moment.
How Interlock compares to traditional cases
Traditional slim cases often trade protection for a thinner look, leaving edges vulnerable. Bulky rugged cases can obscure the phone’s lines and make everyday tasks more cumbersome. Interlock bridges the gap: a compact, stylish shell that integrates a bumper and back panel for real drop protection, without unnecessary weight or bulk, and with a design language that complements the iPhone’s aesthetic.
Upgrade to Interlock - iPhone Air Case and experience a protective solution that moves with you—secure, stylish, and purpose-built for the way you live.
Every CASETEROID product is made to order to ensure exceptional quality while reducing unnecessary waste.
Estimated Delivery Times
Orders are shipped from our fulfillment center in Lithuania and include end-to-end tracking.
Europe
- Standard Shipping: 3–9 business days after dispatch
- Express Shipping: 2–3 business days after dispatch
North & South America
- Standard Shipping: 10–20 business days after dispatch
- Express Shipping: 2–3 business days after dispatch
Asia-Pacific
- Standard Shipping: 10–20 business days after dispatch
- Express Shipping: 2–3 business days after dispatch
Rest of the World
- Standard Shipping: 10–20 business days after dispatch
- Express Shipping: 2–3 business days after dispatch
Please note that delivery times are estimates and may vary due to customs processing, local carriers, weather conditions, or other factors outside our control.
Shipping Rates
- Standard Shipping: $8.95 (FREE on orders over $100)
- FedEx Connect Plus: $15.95
- Express Shipping: $16.95
Standard Shipping is delivered by your local postal service once your package arrives in the destination country.
Customs & Import Charges
International orders may be subject to customs duties, taxes, or import fees. These charges are determined by your country's customs authorities and, when applicable, are the responsibility of the customer.
Order Tracking
As soon as your order has been shipped, we'll send you a confirmation email with your tracking number and a link to monitor your package's journey. Tracking details typically become available within 24–48 hours after dispatch.
Additional Information
- Orders containing Magnetic Power Banks may be shipped separately from other items in your order.
- We are unable to deliver to P.O. Boxes or parcel lockers/stations.
How Does the Buy 4, Pay for 2 Offer Work?
It's simple:
Add 4 phone cases to your cart, and the discount will be applied automatically at checkout. You'll only pay for 2, and the other 2 are free.
Please note:
- This promotion applies only to phone cases.
- Discount codes cannot be combined with the Buy 4, Pay for 2 offer.
Want to order more? The offer scales automatically:
- Add 6 phone cases and pay for 3
- Add 8 phone cases and pay for 4
- And so on—the more you add in multiples of two, the more you save.
Built for everyday use and crafted to last, every CASETEROID product is made with quality and durability in mind. Although no accessory is indestructible, we're committed to delivering products you can rely on.
That's why every product is covered by a warranty tailored to its category, so you can shop with confidence and enjoy lasting peace of mind.
Why Choose
CASETEROID?
MAGSAFE MADE SIMPLE
Designed for seamless magnetic charging and MagSafe accessories—without compromising on protection or style.
STYLE THAT PROTECTS
Premium phone cases designed to complement your style while providing dependable everyday protection—without adding unnecessary bulk.
100+ UNIQUE DESIGNS
Find the perfect design to match your personality. From bold statements to timeless classics, every print is made to stay vibrant and resist fading over time.
TRUSTED BY THOUSANDS
Join thousands of happy customers who choose CASETEROID for premium protection, standout designs, and everyday reliability.
- LQLambros Q.Verified BuyerRated 5 out of 5 starsNever going back to anything disconnected after Interlock
Almost went with something plainer and I am so glad I didn't. Interlock has more satisfying precision than any case I have ever owned. Great quality, perfect fit, and my phone looks genuinely sharp now.
- GMGrigorios M.Verified BuyerRated 5 out of 5 starsThis design just locks in and never lets go
Gifted this to my architect friend and she studied the interlocking pattern for a full minute in silence. Said it was the most precisely executed geometric case she had ever seen. She ordered one immediately.
- AGAuxentios G.Verified BuyerRated 5 out of 5 starsBold interlocking design done with serious precision
Looked even more precise and satisfying in person than I expected. The interlocking pattern is clean and bold and just feels really premium. Gets compliments everywhere. Really happy with this.
- CIChristodoulos I.Verified BuyerRated 5 out of 5 starsThis case fits together like everything finally makes sense
Bought this on a whim and it turned out to be one of my favorite things I own right now. Clean geometry, great quality, fits perfectly. My phone looks so much more interesting now honestly.
- IOIakovos O.Verified BuyerRated 5 out of 5 starsInterlock pulled me in with its precision and never let go
The interlocking pattern is one of those designs that just works on every level. Clean without being boring, precise without being cold. Really well made and fits like it was made for my phone.