Tech21's $29.95 Impact Shield screen protector for the iPhone 5 and Samsung Galaxy S4 has multiple layers in order to combine several desirable features that are not available from a single material.
A hard top layer spreads the impact and has the ability to self-heal minor scratches.
The middle layer - made from a BASF polymer used in military-grade bullet-proof glass - absorbs the impact.
In addition to impact protection, this combination of materials is said to provide excellent optical clarity, a thin film, and a gloss finish.
"Tech21 wanted to apply its innovative Impactology technology to screen protection, and spent two years studying the wear and tear of devices and looking for the best available materials and ingredients specifically focusing on optical perfection to create Impact Shield," said CEO Jason Roberts.
Impact Shield is available at Vodafone stores.