The easiest way to tell Van Winkle's trousers from other brands is by looking at the label. Van Winkle's trousers will have a small, white label with black lettering that reads Van Winkle. Other brands of trousers will not have this label. You can also look at the stitching on the back pocket of Van Winkle's trousers. The stitching on Van Winkle's trousers is always straight, while other brands may have crooked or uneven stitching. Finally, you can feel the fabric of Van Winkle's trousers. The fabric is always high quality and feels luxurious to the touch.