Streamlined Protection. Sleek Series is the ultra-slim resilient OtterBox case that protects your phone from drops and scrapes. Its solid one-piece form is precision designed for your phone and its soft touch edges provide great grip. The case installs easily onto your phone and it slides in and out of pockets seamlessly. OtterBox is known for its stellar customer support and industry-leading warranty. Wrap your phone in the trusted protection of Sleek Series.