The world at altitude demands high quality and low weight. That's where the Bluewater Ice Floss 7. 7mm Double Dry Twin Rope comes into play. Measuring a slim 7. 7mm and weighing in at only 38 grams per meter, this ice cord won't drag you back down to earth. A smooth, single pick sheath resists catching on features as you hack your way up a frozen waterfall. Should you break loose along with a few stray chunks of ice you can rest assured knowing that an impact force rating of 9. 2kN is backing you up.