The Operation Hydra Case is a weapon case added to the game in 2017 that holds 17 weapon skins, from Mil-Spec Grade to Covert, with gloves as its rare special item. SkinsMonkey lists every Operation Hydra Case skin with prices for each wear level.
The operation hydra case was released on 23rd of May, 2017 alongside operation hydra update. Initially, the case was available only to the owners of the operation hydra battlepass, but a later update released the operation hydra case to the general public.
The case contains 17 weapon skins designed by the CS2(CS:GO) community. Additionally, you have a chance to get one of the 6 different gloves skins in the special rare slot in one of the 4 available finishes.
To open the operation hydra case, you need to be holding the operation hydra case key. You can buy it in the store or trade for it with other players. When you open the case, you have a chance to receive one of these select skins:
Bloodhound gloves
Driver gloves
Hand wraps
Moto gloves
Specialist gloves
Sport gloves
The 17 weapon skins from this container make up The Operation Hydra Collection, the set that counts in trade-up contracts. The gloves it drops as rare special items belong to no collection.