Mammut Sender Harness is a performance climbing harness suitable for all the climbers who are looking for a comfortable and light harness to try their projects on the cliff. Made with a laser cut fabric in the belt and in the leg loops, Sender is extremely breathable to avoid excessive annoying sweats even on the hottest days. Particular technology is also found in the rear buckles of the elastic bands that connect the belt to the leg loops. The Slide-Bloc system is perfect for optimal load distribution. There are four material rings, two rigid front and two softer rear. Finally, the connecting ring is protected by a plastic sheath which helps to prolong its life. If you start to see red threads coming out of the service ring, do not be afraid: it is an innovative system that makes you understand when it is time to change your harness! Size Waist Leg Weight XS 61-71 cm 45-51 cm   S 67-77 cm 49-55 cm   M 73-85 cm 53-59 cm 320 g L 80-92 cm 57-63 cm   XL 86-100 cm 61-67 cm Mammut Sender Harness climbing harness