La Sportiva Karakorum Evo GTX Men's Size:43 The Half Dome has long The Half Dome has long been a staple for climbers worldwide References M37 SL M37 TL Weight 86 g 92 g Locking system SCREW LOCK TRIACT LOCK Major axis strength 20 kN 20 kN Minor axis strength 15 kN 15 kN Open gate strength 7 kN 7 kN Gate opening 22 mm 22 mm Guarantee 3 years 3 years Inner pack count 10 10 This sturdy and hardwearing leather boot with Gore Tex lining is compatible with various crampon types 3D Flex system: Innovative multidirectional hinge on the upper allows the ankle tomake the most of its natural characteristics without losing stability