The designers: Childhood friends and co-designers since 2007, Monica Paolini and Sean Monahan’s vintage-inspired pieces always come with a feminine twist.   This season it’s about: A host of on-trend wardrobe staples offered in durable linens, denim and cotton. A pouf sleeved white eyelet blouse is a seasonal standout—that Sea’s features different sizes on either sleeve (the ones on the left are smaller) makes it so much more interesting.