Decked out with an illustration of Nitro gracing the front and the back, these long sleeve hooded sweatshirts will have you rocking your Westside Barbell pride all winter long. The hooded sweatshirts are available in multiple colors, so grab your faves! Westside Barbell Fact The Westside Barbell Dog Logo is based on Louie Simmons dog Nitro. Who lived and died at Westside Barbell. Nitro was always waiting on Louie and Westside Crew to come train at the gym and was a very important member of Westside. In Nitro's honor, Louie designed the world famous Westside Barbell Dog Logo based on his dog's image so that every time you wear our t-shirt in and out gym you are bringing Nitro with you to the place he loved'.