갖추다 is having everything that ought to be there — equipment, a system, the right clothes. The -게 adverb rates how completely: 완벽하게 갖춘, 철저하게 갖춰지기를, 든든하게 갖추고. Three of these lines are about dress, using the compound 갖춰입다: 운동복 딱 정확하게 갖춰입고, 'in proper workout gear'.