My favorite jars.  They are discreet, keep out the sunlight, and the silicone sleeve protects your jar.

From the manufacturer:

"We believe the key to sustainability is versatility, so we wanted to make one of the most widely used products, the mason jar, even more useful. With the Re:stash jar, the Mason-re team further transforms the mason jar into the perfect stash jar. The Re:stash jar includes a mason jar, a silicone koozie and a patented child proof lid. Our jar has no plastic and the lid is made with 30% farm waste."