adidas Original Trefoil Sackpack. Carry it all in Trefoil style. This bag has a simple sack design with drawcords that pull double duty as shoulder straps. It's made of soft, durable fabric that's made to last. Drawcords double as shoulder straps. Zip-close patch pocket. Big screenprinted Trefoil logo. Dimensions: 14" x 18.25". 100% polyester. Imported.