The SkyCaddie SGX/SGX-W Skin is the best way to protect your new investment from accidental falls, which WILL occur, mostly because the SkyCaddie belt clip is poorly made, and eventually fails, which means it will no longer reliably lock the SkyCaddie into the clip. It will merely be resting in the cradle of the belt clip, but not locked in. The first time it happens, when you bend over, your SGX or SGX-W will take a dive out of the clip and fall onto the ground. When it happens on the green, as you mark or pick up your ball, or on the tee, as you are placing your tee into the ground, it will be annoying, but harmless, as you will likely be on soft grass. However, when it happens in the parking lot, after your round, as you take off your golf shoes, it won't be pretty, as it takes a dive onto the concrete or asphalt!
The silicone skin is the best way to protect the SGX and the SGX-W (I recommend you buy the SGX instead!), and it also gives a you more textured surface to safely hold the SGX during play and when syncing it at home, as the SGX by itself is somewhat slippery.
It allows full access to all the buttons while providing a soft cushion around the full frame of the SGX, with a nub on the back to use it in the belt clip. It also provides some level of additional weather proofing and protection against loss of the rubber seal of the USB port cover, which has been known to fall out and get lost otherwise. To charge the SGX, you just peel back the Silcone Skin corner in the upper left to access the charging port, while leaving the SGX in the protective Silicone Skin at all times.
Without exception, every SGX owner who has tried one has loved it!
Highly recommended, without any reservations!