Tytan 250 threads from Ariadna are fine yet strong sewing threads made from 100% polyester silk (continuous filament), designed for hemming machines and blind stitch seams. They create a smooth, almost invisible stitch while being resistant to breaking, abrasion, washing, light, and chemicals. Perfect for hemming skirts, trousers, coats, curtains, and for overcasting delicate edges. Ideal for lightweight fabrics when discretion and durability of the finish matter. Recommended needle size: Nm 70–80. A wide color range makes it easy to match the shade for a flawless, neat inside finish.