Length (yd) 186 Length (m) 170 Weight (oz)3.5 Weight (g)100 Fiber Cotton Fiber Detail 100% Mercerized Cotton Care Machine Wash, Machine Dry Care Detail Machine wash. Initial water temperature should not exceed 40C or 105F. Any dry cleaning solvent other than trichloroethylene may be safely used. No bleach product may be used. A machine dryer may be regularly used at a maximum of Medium Heat setting. Regular ironing, steam or dry, may be performed at Medium setting (150C, 300F).