Tsunagu Hakamata (
Tsunagu is a tall, slim man with an unnaturally long and flexible neck, as shown on several occasions, and dark, heavily-lashed eyes which appear to tilt slightly inwards. He has rather long blonde hair which he wears combed drastically to the left, covering his left eye.
His hero costume consists of a pair of jeans, a denim waistcoat with two large breast pockets, and a denim dress shirt with a very high collar which covers his face up to just below his nose. He wears two belts, one around his collar and one around his waist, and short dark brown boots with thick gray shafts and soles.
Best Jeanist is an elegant man with flamboyant tendencies. He believes very strongly that people with influence must maintain a positive appearance both physically and socially. Best Jeanist often uses metaphors referencing jeans, denim, and various other sewing and fabric based phrases, often inspiring his recruits with speeches, telling them to keep their life straight like their jeans. 
Best Jeanist takes the role of being a hero very seriously. He is selfless, brave, and charismatic, and aims to spread a sense of a peace to all people and believes heroes don't make excuses. He did not hesitate to take the full brunt of All For One's attack to save his allies, something the latter later praised him for.
Best Jeanist believes that no matter how dire a situation may be, a real hero doesn't believe in excuses.
Enhanced Durability: Tsunagu was able to take a direct hit from All For One's attack and remain conscious, albeit taking heavy injuries and eventually losing one lung.
Skilled Youth Counselor: Gang Orca was surprised to find out that Tsunagu was unable to reform Katsuki's brutish behavior. This implies that he has good record of reforming troubled youths.
Fiber Master (ファイバーマスター Faibā Masutā?): Best Jeanist can manipulate fibers at will as long as the person is wearing clothes. He can unravel a part of his clothes into fabric strings and can use them to restrain targets. This Quirk works better on denim rather than sweats. This is a powerful ability that catches most off guard. He can manipulate his threads to move very fast, far, thin enough to be nearly invisible, and strong enough to easily bind even Nomu.