Next to Jansport I think Herschel Supply Co. is one of the finest makers of backpacks around. The special thing about these Heritage style packs is they are done in a ripstop material. If you don't know what ripstop is just think of the material that a seat-belt is made of. Another feature different here is the inside lining is done in a checkerboard black and white rather then the red pinstripe lining used on the Popquiz which is the one I actually own. These are both available now at Herschel Supply Co.