Hard to say which of its many great features makes the Leader a perennial best seller. Between the distinctive Spyder look in bold color blocks and fully-loaded functionality (adjustable openings from hood to cuffs, watertight YKK AquaGuard zippers, interior stretch panels), GORE-TEX® fabric and toasty 100g PrimaLoft® Silver ECO Insulation, there's something for every winter athlete built into this class favorite.