GRIVEL Mutant (S/M) This is an ultra-lightweight climbing helmet weighing 153g. It's slightly lighter than the PETZL Sirocco of the same size. If you don't want the same gear everyone else has, like the Sirocco, and you don't want to be seen with the same things as others, but still want a light helmet, this is highly recommended. Although it's new and unused, the blue "Japan Fit" sticker has been removed once. The first photo shows the main body and all accessories. Warranty card, etc., are all included. Size: S/M (48-58cm) Weight: 153g Manufacturer's suggested retail price: 19,800 yen Here's the GRIVEL product page: grivel.jp/products/mutant-white #GRIVEL #Climbing #Helmet