What I like about Reese Witherspoon's style is that it's approachable. There's nothing complicated, or over the top about it. It's simple, classic pieces that just about anyone can pull-off. Take this Milly Neon Fair Isle Sweater she wore for example. Paired with jeans it's nothing out of the ordinary, but when you pair it with ankle booties, and a black studded satchel - you take what could be a "boring" outfit, and edgy it up a bit without going too trendy.
If you love the look and want it for less, I found a similar style
sweater at Old Navy (available in sizes xs-xxl) and Old Navy skinny
boyfriend jeans (available in sizes 0-20)!