Material Terry loop construction 9 gauge Merino Wool 70% 22.5 micron From South America Mulesing free Superwash Polyamide 30% PA 6.6 Dtex 3.3 textured yarn Properties Test method Rating Abrasion resistance ISO 12947-2:1999/ISO 12947-2/AC:2006. Min 50 000 cycles Dimensional change after washing ISO 3759: 2011 Max 5% ISO 5077:2008 ISO 6330:2001 + A1:2009 Thermal resistance ISO 5085-1:2004 0,1 m2K/W Colour fastness to perspiration ISO 105:E04:2009 Min 4-5 Colour fastness to laundering ISO 105-C06:2010 Min 4-5 Colour fastness to artificial light ISO 105-B02:1999 + 105-B02:2000 Min 4-5 Weight EN 12127:1997 400 g/m2