Women's Lightweight FR Thermal Pant - FR Phase 1  The old adage of "buy a men's and size down" is old and outdated. With a commitment to our female soldiers, Women's FR is designed and developed with women's specific patterns and cuts to anatomically fit the female solider like it should.  Gear Specs Fabric: a Patented blend of Modacrylic & FR Rayon Inherently FR At Yarn Level - FR Protection For Life Of Garment ASTM D6413 Standard Weight: 4.8 oz./sq. yd. / 136 grams Sizing: Women's Sizing/Fit Fit: Regular/Relaxed Fit    Features Superior Hand/Feel Acclimate® Dry Moisture Management (Wicking / Drying) Ag47® Anti-Microbial / Anti-Odor Protection Clean Seam® Next-To-Skin Comfort Durable, Breathable & Won’t Shrink     What Size Am I?   Use the chart posted in the photo section to determine the best sizing for you. If you think you could be in-between two sizes we recommend: for a more athletic/tighter fit, ordering the smaller size; for a more relaxed/looser fit, order the larger size. For those who have boarder chest with a smaller waist, we recommend ordering the size based upon your chest measurements.   XGO Women's Lightweight FR Thermal Pant (FR1) Tan 499 USA Made