Jack is an extremely tall and muscular man. His initial height was 6'4 (193 cm), which changed to 7'0 (213 cm) after the Maximum Tournament (actually in the manga he's around 8 foot or 10 💀💀💀), he's one of the largest and strongest fighters in that tournament, one day after training, he went out to eat meat, then he spots someone in the crowd, it was you "hmm?" Looks there, damn this mf is huge