“Extra” is giving a set of matching socks and underwear from Related Garments to five lucky friends! “Extra’s” Mario Lopez spoke to Related Garments’ co-founder David Appel, who is revolutionizing the fashion industry with the brand’s underwear and sock line. The brand’s signature set — a boxer brief, dress sock and no-show sock trio — has become a favorite among actors and music artists such as Jamie Foxx, Ed Westwick, Nick Jonas, Joe Jonas, Bryan Greenberg, Matthew Perry, Ruby Rose, Bella Thorne, Taye Diggs, Kellan Lutz and Robbie Amell.