Okay first of all you should find shirts with the perk Ninja Squid, and shoes with the perk Stealth jump or Ink resistance, because these are simply the best perks. These are all main perks so you can check the shop for clothes with these perks. Ninja Squid makes you invisible in your won ink so ripples don't form, Stealth Jump makes the marker that shows down when you super jump not appear, and Ink resistance reduces damage and movement speed in enemy ink. Each brand of clothing, (Squidforce, Tentatek, and Takaroka for example) makes it so you have a x5 chance of rolling a specific sub perk, and a 1/2 chance of rolling a specific perk. Off the top of my head I know that Squidforce brand has the x5 chance of getting the Strength up perk. Just take what subperks you feel compliment your playstyle best. So if you want strength, I would buy the squidforce white anchor tee, which has the main perk of Ninja Squid, and just keep rerolling to get three strenth perks. For your hat, you will want to remember that the main perk has a bigger effect than the subperks. Just plan out what perks you want, and then get tot work! Hope this helped!