Tuxedo shop. Derks Formals & Menswear was founded in 1939. Since that time, 5 Star Formals by Derks has become an icon in the formalwear and menswear industry in the Edmonton area and Western Canada. Much of that success has been based on building relationships with the community and, most importantly, our clients. Offering both full wedding suits and tuxedos as well as accessories for sales and rentals.