The bluesign® system is the world’s strictest normal for environmental safety, shopper safety and occupational security. All features of the product which might be related to the surroundings are examined critically and optimised completely: use of supplies, power, water, waste water, exhaust air, noise, waste, remedy of hazardous substances. A product could also be awarded the “bluesign® product” label provided that a minimum of 90% of the textile floor and 30% of the elements used are bluesign®-certified.

Half ropes (also called double ropes) are designed, like twin ropes, for use as a pair. The identical as twin ropes additionally they solely supply standardised security when used as a pair. Nevertheless, in contrast to twin ropes, half ropes don’t have to be clipped collectively into every bolt or piece of safety. This system is right for poorly protected or zig-zagging routes or for conventional climbing (trad). It permits rope drag to be decreased the place safety factors are unfold out and significantly reduces impression drive. It follows that climbing with a pair of half ropes requires utilizing a belay gadget that permits you to handle two ropes concurrently, i.e. to have the ability to pay out and absorb each ropes. Half ropes can be utilized as a single rope to convey up a second. That is notably related when climbing as a celebration of three and mentioning two seconds. Half ropes vary in diameter from 7.5 to 9 mm and usually weigh from 40 to 50 grams per metre.