Knots will not hold in spectra webbing. Webbing must be cared for in the same way as ropes. It will lose strength if left in the sun, contaminated by any of a host of chemicals, nicked by sharp objects, crushed by rock and so forth. It is up to the individual to monitor the condition of their own equipment as well as inspect the gear of one's partners. ICE GEAR Winter climbing demands different equipment, different techniques and an awareness of a different medium.
Leader falls on ice are frequently more serious than falls on rock.
Sharp tools are swung in close proximity to the rope and your body. In addition modern ice tools offer climbers more opportunity to get in over their heads. The objective dangers inherent in winter climbing can never be overestimated. A simple injury in the summer can be life threatening in the winter. A thorough knowledge of the winter environment and of your equipment and its proper uses is essential for your safety.