3M™ Fastener SJ3401 is a non-adhesive nylon loop fastener with temperature resistance of up to 200°F and an engaged thickness of 100 mils to 150 mils. Provides a tailored appearance for garments and fabrics. It allows for adjustable closure and is washable and dry cleanable. 3M™ Fastener SJ3401 is preshrunk to ensure maximum dimensional stability and flatness.