“That fit shreds” = that’s an awesome outfit

Synonyms for Fit: outfit, drip, gear, cloth(es), getup

Synonyms for shreds: killer, swag, gnarly, rad, sick, dank, cool, fire (🔥),

Your drip is fire

Your outfit is cool

Your gear is rad

Your clothes are sick

Your getup is dank

Your cloth is killer

All pretty equivalent statements which you may relate to more based on era of terminology you grew up with.

(This is from my brain dictionary, real life experiences may be different)

Edit: Proper spacing to avoid aneurysm