Air Lux 70% Viscose, 30% Extrafine Merino Wool dry clean any solvent but trichlo-ethylene iron low do not tumble dry dry flat do not bleach hand wash Print Color Card Recommended Needle Size US MM UK HOOK 4-5 3.50-3.75 -9 E4-F5 6.75 sts = 1" Super Fine wt.