Tunnel Belt Loops

Generally seen as a more casual alternative and have military origins

Watch Pocket

For watch or coins; is found on the bottom of the waistband on a flat front pant (as shown) and on the inside of a pleated pant

Elastic Side Tabs

An English detail that provides an elegant alternative to belted trousers

Suspender Buttons

Located inside the waistband; can be uncomfortable unless you wear suspenders frequently