Injection Joggers are Women's sizing. This means it's a smaller, fitted look.  In general, they run on the small side.  So, women should size up for a looser fit.

Our model is 5'3", 130 lbs, usually wears a Women's 4-6 pants - pictured wearing a Women's Small for a fitted look.

Note: Measurements below are garment measurements, not body measurements.

Measurements:
Waist: Measure the circumference at smallest point of your waist.
Hip: Measure the circumference at the fullest point of your hips.
Inseam: Measure inside length of your leg from the crotch to bottom of ankle.