For the best performance from any truss Dob, a light shroud is a must. This one, custom designed for the SkyQuest XX14i, is made of a stretchy nylon blend material that fits like a glove over the truss poles of the XX14i, fastening with thick elastic bands on both ends. The water-resistant, opaque black fabric blocks stray light from entering the optical path, thus improving image contrast. It's also breathable, which minimizes unwanted vibration of the scope in breezy conditions. Use of the shroud will lessen the accumulation of dust and dirt on the mirrors during use, and will help prevent dew from forming on them. Made in the U.S.A.