The Incase Slider Case’s are extremely popular just like the Iphone 4. So it’s no surprise that both are/were hard to come by during the start of things. With hardshell plastic construction, interior rubber guardrails for shock absorption and scratch protection, the Slider Case is a good, safe, choice. The Perforated Snap Case on the other-hand is Incase’s lightest case to date. Ultra-minimalistic design which provides scratch protection, and just like the Slider Case, all device features are accessible.