For the best fit, you should know the length of your scope tube. Scopeshields are made to be 1" to 1 1/2" shorter than your actual tube length, so that they will stretch snugly over the riflescope. You may use the "Find Your Scope" tab above to locate your brand, and then your model of riflescope. Most common scopes will be found in the listings.

Or you can physically measure your riflescope's tube length.

Use normal rounding up or down to select the order size. For example, a 10.25 inch tube would order the 10" nearest tube length (an SS09) at the drop-down menu, while a 10.50 inch tube would order the 11" nearest tube length (an SS10).

If ordering a number of Scopeshields as gifts or incentives where actual scope tube lengths are unknown, we suggest that a majority of hunting riflescopes today will be fit by the 12-inch  tube size selection (ScopeShield SS11). These covers will fit most scopes with lengths from 10 1/2 inch to 13 inches.