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pants 
Garment for the lower body; it extends from the waist or the hips to the ankles, covering each leg separately.
cuff 
Folded end of the pant leg.
knife pleat 
Pleat created by a vertical fold pointing in one direction and of constant width.
crease 
Visible mark that remains where the fold has been ironed in.
fly 
Vertical opening at the middle front of the pants; it closes with buttons or a zipper and is usually covered by the folded edge of the opening.
waistband extension 
Strip of fabric that extends the waistband and is used to fasten it.
front top pocket 
Front pants pocket that is often curved or diagonal; the opening is cut into the garment or is hidden inside a seam.
belt loop 
Thin vertical strip of material sewn at the waist of pants; a belt passes through it to hold the pants in place.
waistband 
Strip of fabric sewn at the waist of pants forming a hem and holding them in place.
back pocket 
Pocket of various kinds in the back of the pants.