Will this Matte Black Diagonal Line Phone Case fit my iPhone or Samsung model perfectly?

Absolutely! Our Matte Black Diagonal Line Phone Case is precision-molded to perfectly fit each specific iPhone model from iPhone 8 to iPhone 16, and every Samsung Galaxy from S10 to S25. Simply select your exact phone model when ordering, and you’ll get a case that fits snugly with full access to all buttons, ports, and cameras—no awkward gaps or misaligned cutouts.

How protective is this case? Will it keep my phone safe from drops and scratches?

Yes, protection is one of the standout features of our case! This case uses a tough dual-layer design with a durable polycarbonate outer shell and a shock-absorbing silicone liner, so it helps protect your phone from everyday drops, bumps, and scratches. The raised edges help shield your screen and camera, making it a great choice if you want both style and peace of mind.

Is the matte finish really fingerprint-resistant? How do I keep the case looking new?

The modern matte finish is designed to resist fingerprints and smudges, so it stays looking clean with minimal effort—even with regular use. For best results, just wipe the case with a soft cloth and a little mild soap if needed. The deep matte surface and 3D diagonal line texture won’t show oily marks or greasy fingerprints like glossy cases sometimes do.

Is the diagonal line design printed or textured? Does the design last over time?

Great question! The diagonal line detail on this case is a tactile, raised 3D texture that adds grip and style. The matte surface features UV-protected ink for the color, meaning the modern lines and finish are built to last and won’t easily fade, scratch, or peel, even with daily handling.

What’s the difference between the glossy and matte finish options? Which should I choose?

Both the glossy and matte finishes offer the same protection and precise fit, but they look and feel a little different. The matte option has a soft, modern appearance that resists fingerprints and provides a comfortable, non-slip grip. The glossy finish is more shiny and eye-catching, adding a little extra pop to the design. If you prefer a sleek, minimal look that stays smudge-free, go with matte. Both are easy to clean and keep your phone stylish and well-protected.

Matte Black Phone Case for iPhone 8-16 & Galaxy S10-S25 Models

Matte Black Phone Case for iPhone 8–16 and Samsung Galaxy S10–S25 – Sleek Geometric Texture Tough Case

Add bold style to your device with the Matte Black Phone Case.

Phone Case Type | 🦾 Tough Case

Designed for iPhone 8–16 and Samsung Galaxy S10–S25, this case features a modern diagonal line texture in a deep matte finish. Built for protection and elegance, it's the ideal accessory for tech-savvy users who value strength and style.

Part of our curated Phone Cases | KARARMDESIGN collection, this tough case suits professionals, creatives, and minimalists. Its sleek geometry, combined with dual-layer durability, makes it ideal for work, travel, or gifting.

The textured wrap design adds grip and depth. The rich black matte tone complements any outfit or setting, making your phone a confident expression of your style.

🛡️ Engineered for Everyday Impact

This tough case includes a polycarbonate outer shell and shock-absorbing silicone liner. It resists scratches, absorbs impact, and protects your phone from drops and bumps. Lightweight yet strong, it keeps your phone safe in all environments.

🎨 Matte Finish with 3D Texture

The 3D wrap design fully covers the case with bold lines and UV-protected ink. This ensures long-lasting style and visual quality, even outdoors. The matte surface keeps fingerprints away and enhances grip.

📱 Designed for iPhone 8–16 and Galaxy S10–S25

This case fits a wide range of iPhone and Samsung models. It’s precision-molded to keep buttons responsive and ports fully accessible.

📱 Supported Models

This Matte Black Phone Case is available for the following:

iPhone 8 / SE (2nd & 3rd Gen)
iPhone X / XR / XS / XS Max
iPhone 11 / 11 Pro / 11 Pro Max
iPhone 12 / 12 Mini / 12 Pro / 12 Pro Max
iPhone 13 / 13 Mini / 13 Pro / 13 Pro Max
iPhone 14 / 14 Plus / 14 Pro / 14 Pro Max
iPhone 15 / 15 Plus / 15 Pro / 15 Pro Max
iPhone 16 / 16 Plus / 16 Pro / 16 Pro Max
Samsung Galaxy S10 / S10e / S10+
Samsung Galaxy S21 / S21+ / S21 Ultra / S21 FE
Samsung Galaxy S22 / S22+ / S22 Ultra
Samsung Galaxy S24 / S24+ / S24 Ultra
Samsung Galaxy S25 / S25+ / S25 Ultra

🎁 A Bold Gift for All Occasions

The Matte Black Phone Case makes a practical gift for birthdays, holidays, or professional milestones. Its minimalist style and solid protection suit any lifestyle or personality.

🧼 Easy Maintenance

Keep your case clean with a soft cotton or microfiber cloth. Use mild dish soap if needed. Avoid abrasive cleaners to preserve the case’s matte texture and print.