Best Buy has Lifeproof FRE iPhone 6 Waterproof Smartphone Case in Avalanche on sale for $17.99. Shipping is free.
Amazon also has Lifeproof FRE iPhone 6 Waterproof Smartphone Case in Avalanche on sale for $17.99. Shipping is free w/ Prime or on orders of $49 or more.
Note, this case is incompatible with the iPhone 6s