LensCoat lcs180ossn Lenscover for Sigma 180mm Macro f2.8 EX DG OS HSM (Realtree AP Snow) Protection from bumps, dings, nicks, and the elements like water, sand, dust etc. Camouflage patterns help conceal by breaking up the shape of the lens Neoprene acts as a thermal barrier protecting hands from hot and cold Slides on like a sleeve Made in the USA