Fairtex Worldwide Portal. Fairtex is a world renown Muay Thai and MMA brand that produces premium gear and apparel since 1971. Fairtex also trains, manages and promotes athletes that competes in Muay Thai and MMA worldwide. Headquarters are located in Bangplee, Thailand and San Francisco, CA, USA. It is the only organization that can say it truly eats, drinks, breathes and lives the combat sports.