what to buy a bf for christmas

Okay! so this is my first real adult healthy relationship basically seeing as i haven't dated in 3 years.
we have only been together for a couple months, however he is paying for half my ticket for hawaii for part of my christmas present which is 450$

i really need ideas!
what have you boughten a boyfriend? i feel like such a noob at this i don't know whats cool or whats lame. My best friend Kate suggested me go for this North Face Diez Jacket ,but i am not sure,it is good or not.Should i get it or not?

I bought him a buffalo shirt so far but thats it lol!
help please!

 

Not now, not ever!