Nothing says Seventies disco like this throw-on-and-go jersey party top. Sienna firmly believes if you're not comfortable you won't have fun, so this look is all about enjoying yourself. Dress it up or down, the easy-to-style top goes with absolutely everything. The all-over shine, slash neck and deep arm holes add a fresh take on a classic shape. M&S X SIENNA MILLER Womens M&S X SIENNA MILLER Studded Jersey Top