Aunt Lydia"s Fashion Crochet Thread. Premium quality crochet thread in a slightly heavier weight that is ideal for apparel, fashion accessories, and home decor. Available in classic and contemporary shades, Aunt Lydia"s Fashion Crochet is a versatile thread for all your crocheting needs. Features: size 5. Solids: 100% mercerized cotton, 150 yds/137m. Metallics: 97% mercerized cotton/3% metallic filament, 100 yds/91m. Recommended crochet hook: E (3.5mm). Care: machine wash gentle (max.temp 104F/40C), roll in towel & block, do not bleach, do not dry clean, do not iron.