The X1 Ladies Life Jacket comes in two versions. Both the X1 Zahra and X1 Sina have the same cut. However, the Zahra has a fire-fur liner to help keep you warm on those longer sets, whilst the Sina has a quick-dry liner, so you don’t have to put on a soggy vest. The X1 has an average fit around the chest and waist, but the smaller armholes and wider panelling across the shoulders and back will offer a secure feel. If you are looking for more room around the shoulders and upper back, the Jetpilot Quantum Bec Ladies vest is a great alternative.