This is a very simple modifier that add a consistent crisscross halter top to your outfit. It was trained on outfits with different patterns, and with different styles for the bottom part (tucked in, cropped, and ones with more crosses on the midriff). The models had different skin tones & different bust sizes to reduce any alteration to the original character/model.
The trained trigger word is crisscross halter, but those words can be anywhere in the prompt. I would use a strength of 0.6-1.0, depending on what other LoRAs you're using.