The Rab Xenon Mitt is a superlight and packable insulated mitt, using Pertex® Quantum fabrics & PrimaLoft® Insulation and featuring a soft microfleece lining.Superlight and packable, the Xenon Mitt punches far above its weight. A durable Pertex® Quantum outer is used to protect PrimaLoft® Gold Insulation for welcome warmth. A soft microfleece lining makes these mitts comfortable next to your skin.Packing away into their own stuff sack the Xenon Mitts are perfect for less strenuous mountain activities, or throwing in your daypack, just in case. Features and Specifications Durable PU palm PrimaLoft® Gold Insulation (40g/m²) Pertex® Quantum outer fabric Insulation - PrimaLoft®:40g/m² Weight: 65g / 2.2oz including stuff sack Nylon bemberg lining Pertex® Quantum stuffsack Rab Glove Sizing Chart Hand Length is measured from the wrist to the end of the middle finger. Hand circumference is measured around the knuckles. N.B. The table below shows body measurements not garmernt measurements.  Glove Size Hand Circumference Hand Length S 18-19 cm 16.5 - 18 cm M 20 - 21.5 cm 19 -20 cm L 23 -24 cm 21.5 - 23 cm XL 24-25.5 cm 23 -24 cm XXL 25.5 - 26.5 cm 24 - 25.5 cm Rab Xenon Mitt - Ultralight Insulated Mitt With Pertex Quantum and PrimLoft