Standard Fit: This piece is true to size for a comfortable, true-to-life fit. Wherever your workout takes you, the Mountain Athletics Softshell Jacket is the jacket you need. WindWallâ„¢ fabric is windproof and provides lightweight warmth, perfect for cold-weather outdoor workouts. Stretchy fabric lets you move freely, while convenient zippered pockets keep your essentials close at hand. Wear it alone or as a midlayer under a waterproof shell.