Women's Hike Lightweight Performance Boot Sock Colour:Berry Excellent shock absorbing and cushioning properties Colour:Nightblue Baltic Excellent shock absorbing and cushioning properties References M34A SL M34A BL M34A RL Weight 70 g 75 g 75 g Locking system SCREW LOCK BALL LOCK TWIST LOCK Type B B B Color(s) GRAY GRAY GRAY Major axis strength 27 kN 27 kN 27 kN Minor axis strength 8 kN 8 kN 8 kN Open gate strength 7 kN 7 kN 7 kN Gate opening 25 mm 25 mm 25 mm Guarantee 3 years 3 years 3 years Inner Pack Count 1 1 1 moisture wicking and outstanding durability for all day comfort Built on a structure of Lycra® and set by our Thermo Fit process ensures the sock returns to its original shape and size after every wash