Item clarification

[bluemoonmtk 0]

I am BD , Level 15. I want to buy these items below. but I m not sure that I can use it . Why two slots at right bottom corner are in red line color?Does it mean I cant use?

 

[Tess 0]

I am BD , Level 15. I want to buy these items below. but I m not sure that I can use it . Why two slots at right bottom corner are in red line color?Does it mean I cant use?

 

 

You can use these two items. The bonus stats inside the red lines will only be activated if you have gloves/boots of the same set. Otherwise you'll only get the stats in the first row.

[Legionn 88]

You need to finish chainless quests to wear them.