These Ponchos are large and only come in one size. We use the entire width of the bolt of Fabric, including the selvedge ... 57 inches (145 cm) across.  Next run, they MAY be a little narrower because the bolts may vary in width.  The front of the Poncho is about 42 inches (107 cm) and the back a little longer at about 44 inches (112 cm)