Smartphones are thinner and more delicate than ever, yet we still want to use them freely outdoors. After years of product design and real-world testing, Bone chose eco-friendly silicone for its balance of protection, comfort, and durability.
— Why Silicone Works for Everyday Protection
Smartphones keep getting slimmer and more advanced. Bone asked whether one material could feel comfortable in daily use while still providing reliable cushioning during cycling and running. The answer is eco-friendly silicone—a simple material that reshapes how protective accessories work and feel.
Three silicone protection solutions from Bone (Image source: Bone)
1. Silicone vs. Hard Cases
Good smartphone protection is not only about resisting scratches. It must also absorb and disperse impact. Silicone adds the flexibility that rigid materials may lack.
1. Blind Spot: Impact Transfer Through Rigid Cases
Rigid plastic cases provide strong scratch protection and structural support. Without a flexible cushioning layer, however, less impact energy can be absorbed through material deformation. Silicone can flex slightly on impact, helping distribute force around the corners and other vulnerable areas.
2. Solution: Flexible Shock Absorption
Silicone’s polymer structure allows it to act like a soft cushion. When a phone is dropped, the material deforms slightly to absorb and disperse impact. Its soft texture and reliable grip also help reduce accidental slips during everyday use.
Bubble corners add both style and protection (Image source: Bone)
2. Bike Tie: Flexible Shock Absorption
On a bike, the challenge is to hold the phone securely while reducing road vibration. Silicone helps achieve both.
1. Challenge: Road Vibration
Road vibration travels through the bicycle frame and phone mount to the device. For smartphones with precision cameras and optical image stabilization, reducing this vibration transfer is an important part of mount design.
2. Solution: Flexible Silicone Support
Bike Tie creates flexible silicone contact between the phone and handlebar. It holds the phone firmly while helping absorb and disperse road vibration. Its stretchable design also fits different phone sizes and camera layouts.
Flexible silicone helps reduce road vibration (Image source: Bone)
3. Run Tie: Secure, Breathable Fit
During running, repeated arm movement can make a phone bounce, slip, or feel uncomfortable. Silicone helps keep it stable without adding unnecessary bulk.
1. Pain Point: Slipping and Sweat Buildup
Fabric or hook-and-loop armbands may loosen after extended use or heavy sweating. Sweat-absorbing materials can also cause heat buildup, odors, and cleaning issues.
2. Protection: Secure Support and Better Airflow
Run Tie uses reinforced silicone straps to securely fit smartphones from 4.7 to 7.2 inches. Its flexible dual-layer structure reduces movement and distributes pressure for a close, stable fit.
The inner airflow channels help release heat and moisture, while the removable and washable elastic armband makes cleaning easier after exercise.
The dual-layer structure follows the arm for a secure fit (Image source: Bone)
4. Durable by Design
Beyond protection, silicone also supports longer product life and less frequent replacement.
1. Stability: Built for Outdoor Use
Silicone offers good elasticity, stability, and weather resistance. It can handle outdoor exposure, temperature changes, and frequent use while maintaining reliable support.
2. Sustainability: Longer Use, Less Waste
Durable and washable accessories can extend the product life cycle and reduce short-term waste. An integrated design with fewer components also lowers the chance of replacing the entire product because one part becomes damaged.
Bubble Magnetic Phone Case for the iPhone 17 series (Image source: Bone)
5. Protection, Simplified
Silicone is more than a protective layer. It creates a soft buffer between the smartphone and the outside world.
From everyday phone cases to Bike Tie and Run Tie, Bone uses eco-friendly silicone to balance protection, comfort, and durability. Its washable and long-lasting design also helps reduce unnecessary replacement and waste.
Simple materials can often provide the most thoughtful and dependable protection.