Warm your muscles. Focus your mind. Before the match begins, zip on the Wilson Aston Warm-Up Vest to get ready for the action. It's made of durable-yet-lightweight woven fabric that stretches as you move and dries in a flash. Perforations at the side let the air in, while secure pockets keep your small essentials nearby. Athletic Fit Part of a matching set Lined Storage Pocket Adjustable waistband Any material can stretch. But our two- and four-way stretch material in both knit and woven items retains its original shape after it's been worn, allowing you to move and your clothes to move with you. Particularly vital in fitted garments, the clothing will stretch and recover without bagging or losing its shape so that, wear after wear, you can look and feel as good as you did the first moment you fell in love with the piece off the rack. Have you ever met a fabric that fears water? DWR (durable water repellent) is an application applied to the surface of the fabric that repels water. This product hates getting wet as much as you do. Imagine a single drop of moisture hitting the surface of one of our Quick-Drying items. With either a topical, inherent or fabric treatment applied, the moisture will spread out over the surface so more air can penetrate - allowing the moisture to evaporate quicker and the garment to dry faster. You should be in the pool; the pool should not be on you.