Anna Saccone, from The Style Diet, teaches you how to wear a boyfriend cardigan. Since the boyfriend cardigan is loose and big, you should wear them in a casual or slouchy style. You can also pair a boyfriend cardigan with boyfriend jeans that fit loose too for the full effect. Also, rolling the jeans or wearing ripped worn jeans will add to the full effect. You can wear a simple plain white tank top under the cardigan for simplicity and for a relaxed look. You can also accessorize with bracelets and necklaces to match with the boyfriend cardigan. Make sure these are simple, classic natural colors. For the shoes, go with flats for another casual relaxed look. Pick simple solid colors and designs for the shoes also! Wear you hair in a messy bun or roll and keep your makeup simple also. This is a masculine trend, so go for a toned down feminine look. But, if you must add a feminine edge, you can add in a belt around the waist (but be careful to not wear too many accessories!) You also have the option of wearing a scarf and tie around your neck. Stay close with neutral colors and simple accessories!