Pants P XS S M L XL 2X 3X 4X 5X 6X
Waist 30" 34" 38" 42" 46" 50" 54" 58" 62" 66" 70"
Inseam 28" 29" 30" 31" 32" 32" 33" 33" 33" 33" 33"
                     
Shirts P XS S M L XL 2X 3X 4X 5X 6X
Chest 40" 44" 48" 52" 56" 60" 64" 52" 56" 60" 64"
Sleeve Inseam 5" 5" 5" 5" 5" 5" 5" 5" 5" 5" 5"
Sweep 40" 44" 48" 52" 56" 60" 64" 52" 56" 60" 64"
Back Length  30" 30"1/4 30"1/2 30"3/4 31" 31"1/4 31"1/2 31"3/4 32" 32"1/4 32"1/2

Pants
Waist - distance around the waist.

Inseam - measure from the center of the crotch seam, down the leg inseam, to the bottom hem.

Shirts
Chest - twice the measurement 1" below the base of the armhole, across the chest from folded edge to the other.
Sleeve Inseam - measure length from the base of the armhole to the bottom edge of the sleeve end.
Sweep - twice the measurement of the bottom opening of the shirt, laid flat.
Back Length - measure from the bottom of the neck to the bottom of the back hem.