The One M8's smooth aluminum exterior may make it slippery for some, so wrap your One in Speck's CandyShell Grip. The case features raised rubber ridges for a sure grip and sports a raised bezel to protect your screen from impact. These bumps also keep your phone from sliding on your dashboard or an inclined surface. A dual-layer design gives your phone added protection while still maintaining its slim shape. The CandyShell Grip is available in three colors - White/Black, Black/Slate and Beaming Orchid Purple/Revolution Purple -- for $34.95.