Adding here as well as replying to Bosun below (who's info I'm copying and pasting as it also happened to me)
I also only received the reservoir itself... I'm missing all of the other components. Displeased... :(
To reiterate the below:
Sent me ONLY the "Seeker" water storage bag... missing the following:
Plug-n-play cap
Hydrant tube with silicone squeeze bulb and pressure-activated valve
Dust cover and pack clip
Pour spout
36 in (91.4 cm) silicone tube
Zippered storage bag
Silicone lubrication
Basic care and use instructions