Show your pride in the Vegas Golden Knights with this Show your pride in the Vegas Golden Knights with this New York Islanders Mathew Barzal Fanatics Branded Home Premier Breakaway Jersey. It is 100% polyester and made by Fanatics. It has a FanFlex team crest applique on front and the player name on the back with numbers on back and on shoulders. It is a more tailored fit providing improved comfort around the torso and arms.. It is 100% polyester and made by Fanatics. It has a FanFlex team crest applique on front and the player name on the back with numbers on back and on shoulders. It is a more tailored fit providing improved comfort around the torso and arms.