Castelli Perfetto RoS Women's VestA Great InvestmentThe Castelli Perfetto RoS Women's Vest offers cold and wet riding protection that allows you to keep going even when the weather gets tough, making it the ideal choice for racing or training rides where the weather turns less favorable. The Castelli Perfetto RoS Vest is fully aero, fully breathable, and fully protected. It features Gore-Tex Infinium 203 Stretch on rear-facing surfaces for extra stretch and breathability and a Gabba-style dropped tail with a large black reflective panel for extra visibility and coverage. FeaturesGore-Tex Infinium 203 Stretch for extra stretch and breathability2 rear pockets with a pump sleeveReflectivity enhances visibility in low-light conditionsSizingSizeExtra SmallSmallMediumLargeExtra LargeChest (in)31"33"35"37"39"Waist (in)24. 5"26. 5"28. 5"30. 5"32. 5" | Castelli | Perfetto RoS Women's Vest | Size Extra Small in Dark Steel Blue