There are several ways to ensure that long-sleeve jackets stay flat and wrinkle-free after folding. Here are some common folding methods:Method 1: Classic folding methodPreparation: Lay the jacket flat on a clean surface, such as a table or bed.Fold the sleeves: First, fold the sleeves on each side of the jacket toward the center so that the inside of the sleeves aligns with the front.Fold: Then, fold the hem of the jacket upward, aligning it with the collar.Finishing: Gently smooth out any wrinkles on the surface of the jacket to ensure a neat fold.This procedure is simple and effective for long-sleeved jackets made of most materials. However, if the jacket is made of a softer material or has a more complicated cut, it may produce a slight wrinkle at the fold.Method 2: Roll and FoldThe roll folding method is suitable for occasions when you need to save space or want the jacket to be tighter after folding.Preparation: Lay the jacket flat on a clean, flat surface.Fold the sleeves: start by folding the sleeves on both sides of the jacket towards the center.Roll up: start from the hem of the jacket and slowly roll upwards until the whole jacket is rolled into a tube.Secure: To secure the shape, you can use an item such as a rubber band or clothing drawstring to gently wrap a few turns around the rolled-up tube portion of the jacket.This method adds a little more complexity to the fold, but it can be a great space saver, and the jacket is much easier to unfold once it is flat.