The Basic collar is similar to the Classic, but it comes with a plastic side release buckle. There are also options to upgrade the plastic buckle to metal/plastic, or a full metal side release. This collar is only available in a few colors: black, dark blue, brown, grey, neon green, pink, red, and yellow. If you want a different color, check out the "Colors of BioThane®" page, and include the color you want under "Order Comments" and select "Other" for color.