Yes 12L… Salomon is modifying it`s great trail running and ultra running pack Salomon Advanced Skin S-Lab 5 and improving it to meet the new equipment standards of Ultra Trail Mont Blanc, TNF Australia and Fuji. Pack have became famous by Salomon`s elite athlete Killian Jornet.
Especially , last year the severe mountain conditions made some necessary equipment changes in UTMB such as carrying waterproof jacket, pants, second layer, hat and gloves have become a mandatory equipment. That said, Salomon is on the edge of modifying it`s top elite runner pack.
Salomon extended the back pocket, bladder size from1.5 to 2 liters and enlarged the side pockets as well. I am not sure but on the pictures it is clearly visible that the fron pockets enlarged as well to get bigger bottles close to chest.
The pack seems to became more like a vest, some how a developed and lab version of both Salomon Advanced Skin s-Lab 5 and old Salomon XT Wings Vest Pack 10+3
I had the 5 liter pack since 1 year and used it on UTMB CCC 2010. You can read a detailed English Video Review in this link. Please click to watch it. http://www.geziyorum.net/salomon-advanced-skin-slab/
Also this year in TNF Australia 100 race some of the Salomon elite athletes have tested the bag as you can see the pictures below.
PS: The information and pictures ares taken from original Salomon Facebook fan page forums and Salomon Australia Fan Page.
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