Constructed from highly durable PVC fabric reinforced with fiberglass mesh. The straps are made from high tenacity Polyamide that exhibits great resistance to fraying and has a minimum breaking strength of 5kN (500Kg). Shoulder straps are foam padded for comfort. Inner Polyester Taffeta lining to protect the seams from wear and tear and also to keep the insides of this bag neatly organized. Machine washable!