If you dad practices tai chi treat him to this design and make him smile design and artwork copyright push merchandising ltdr ltbr gtltbr gtt shirt design reads tai chi dad like a normal dad but much coolerr ltbr gtltbr gtour crew neck short sleeved mens t shirts are 100 premium cotton in a soft pre shrunk jersey knit our womens t shirts are lighter weight 150g tees made with deluxe 30s soft style yarns for a soft feel