Pearl Izumi Women's Expedition Pro Alpha Vest For Intense Efforts on Dry, Cold Days If it's chilly outside, you'll want to wear a vest to stay warm. Vests are perfect for those days when it's too cold to wear just a jersey, but not cold enough for a full jacket. The Pearl Izumi Women's Expedition Pro Alpha Vest has 60g Polartec Alpha Direct active-insulation throughout the body that continuously releases excess body heat before it builds to cause saturation and discomfort. The premium Toray ultra-light woven fabric has 20-CFM for a balance of wind protection and breathability during intense efforts. This vest features lightweight stretch woven fabric in the side panels that defines the fit and allows excess heat to escape, PI Dry C0 technology for a PFAS-free durable water repellent, a YKK two-way front zipper, secure zippered chest and back pockets, and Bio Viz reflective elements. Features60g Polartec Alpha Direct active insulation throughout the body continuously releases excess body heat Bio Viz powerful reflective elements that reach 100 meters for night visibility PI Dry C0 technology for a PFAS-free durable water repellent Sizing Size (Inches)Extra Small Small Medium Large Extra Large XX-Large Chest (in)31 - 33"33 - 35"35 - 37. 5"37. 5 - 40"40 - 43"43 - 47"Waist (in)24. 5 - 26. 5"26. 5 - 28. 5"28. 5 - 30. 5"30. 5 - 33"33 - 37. 5"37. 5 - 42"Hip (Reg. Fit)33. 5 - 35. 5"35. 5 - 37. 5"37. 5 - 40"40 - 42. 5"42. 5 - 45. 5"45. 5 - 49. 5" | Pearl Izumi | Women's Expedition Pro Alpha Vest | Size Extra Small In Highrise