Retainer Shield Question

I have just got a level 65 Retainer Sheld in the FFS DLC. My understanding is that this shield gives the ability to jump higher/longer. Is this true? If so does it need activating and does this only work in the Writhing Deep where you face Haderax?

It only works in the Writhing Deep…It doesn’t need any activation, it’ll be active when you enter this area. Yes, it makes you jump higher.

you also need to wield the Toothpick for the boosted speed to work.