The Gloss finish is a beautiful see through finish. ShakeSphere's opposing hemispheres around a central cylinder creates a capsule shape. Extensive testing of this mixing environment demonstrated is the faultless shape to breakdown powders and soft fruits. The benefits of ShakeSphere's patented system enable mixing of supplements without the need for a mixing ball or a mesh grid, no powders get stuck so it saves you money, avoids horrible smells and makes it super easy to clean. Doing away with mixing accessories has made supplement intake cleaner and more practical. The slide cap will not pop open in your bag, drip, or poke you in the eye when consuming your beverage, it is hygienic and the silicone makes the perfect leak proof closure. Excess mixture on silicone cap falls back into the bottle.