This is color TW01, tweedy bits in bright pastel rainbow on light gray.
Meterage: 328 yards (300 meters)
Unit weight: 100 grams (3.53 ounces)
Gauge: 23.0 to 26.0 sts = 4 inches
Fibers: 40% Wool, 25% Silk, 25% Nylon, 10% Mohair,
Texture: single ply
Ravelry page: http://www.ravelry.com/yarns/library/noro-silk-garden-sock
Hand wash in cool to tepid water with mild detergent like Eucalan. Do not use detergents with brighteners like Wool Light, Tide, etc. as these degrade the fibers and cause color fade. Never use bleach. To help fix color and remove odors add small amount of white vinegar to rinse water. Avoid excessive manipulation or rubbing as this causes felting and shrinkage. Squeeze out excess water and lay flat to dry. Never dry in dryer.