This was an attempt at getting "White Birch In a Braid" from my combed top supplier, but it was tricky to get the balance between white and dark correct. This has the same ingredients as White Birch - Polwarth, Tussah silk, Carbonized Bamboo, and Yak Down - just with higher quantities of everything but the white Polwarth than you'd find in the batt, and minus the silk noils. To get a similar effect to Birch I'd suggest plying with white.
8.8oz