The Spotting Scope Pocket is designed to fit both angled and straight eyepiece spotting scopes.  The attachment system connects to the back or sides of any Stone Glacier pack via the compression straps and allows quick access to your spotting scope. You can also utilize this pocket for extra cubic inches.  18 inches tall, weighs 4.1 ounces and approximately 375 cubic inches. Fits all Stone Glacier bags except Approach (which already has a spotting scope pocket.) Made in the USA.