1. Apple iPhone Clear Shockproof Bumper Case Hard Cover Tennis Racquets (White For iPhone 6 Plus / 6s Plus) (Click Link to Check Price on Amazon)
Editor's Rating : 9.3 out of 10
Easy slide on installation.High quality hard clear rear cover surrounded by a shock absorbing TPU border.

2. Speck Products MIghtyShell Case for iPhone 6/iPhone 6S, Charcoal Grey/Tennis Ball Green/Gravel Grey (Click Link to Check Price on Amazon)
Editor's Rating : 9.9 out of 10
Outperforms military drop tests by 2X!Tri-layered hard shell with rubberized lining for Ultra iPhone protection

3. for Apple iPhone 6s Plus Love Tennis Phone Cover Case (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
perfect fitAllows easy access to all buttons, controls and ports

4. iPhone 6 Plus, iPhone 6s Plus 5.5" Case, True Color® Tennis Ball Sports Collection Slim Hybrid Hard Back + Soft TPU Bumper Protective Durable [True Protect Series] (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
Compatible with iPhone 6 PLUS and iPhone 6s PLUS 5.5" only! Highest Quality Ultra-HD 3D texture printed on the back, this print will NEVER come off or fade! It will stay new and shiny until you change for new device!Cool and super-slim design along with high level of protection! Durable and smart 2 parts design of soft shock absorbing TPU / Silicon bumper combined with durable polycarbonate shell, your device stays slim but totally protected!

5. Apple iPhone 6 Plus / 6s Plus Shockproof Impact Hard Case Cover Game Set Match Tennis (Teal) (Click Link to Check Price on Amazon)
Editor's Rating : 8.8 out of 10
Dual layer, 2 piece case.High quality hard plastic outer shell with a shock absorbing soft rubber inside skin.