A protective garment having an expandable material incorporated therein is provided. The expandable material may be formed of a nonwoven fabric having a first fabric surface and a second fabric surface which is opposite the first fabric surface. A section of the fabric defines at least one region gathered into a plurality of successive pleats. Each pleat is made of an overlap in the fabric such that a portion of the first fabric surface is disposed adjacent to another portion of the first fabric surface. A secondary panel for straddling a pleat may be provided. The secondary panel may be attached to the fabric by attachment points that are adapted to retain the pleat in a folded state until application of a tensile force directed along the fabric length causes the secondary panel to separate which would enable the pleat to unfold.