Stack sizes are pretty important here. Many times in this type of spot I could just cold call and get tricky... but original raiser had $350 and he's a good player. The button reraiser is loose but not aggressive. His hand range is probably JJ-AA, AK.

Prima Poker skin
No Limit Holdem Ring game
Blinds: $1/$2
6 players


Stack sizes:
UTG: $202.50
UTG+1: $353.00
CO: $250.75
Button: $513.25
Hero: $345.45
BB: $198.00

Pre-flop: (6 players) Hero is SB with
UTG calls, UTG+1 raises to $12, CO folds, Button raises to $32,

$101

any particular reason everyone says $100?

I'd go less. You don't need to raise that big to give either player bad odds to call.

$99

90 seems right to me.

All in, unless youre willing to check / fold if a K flops.

RESULTS

i made it $120. i figured that was enough to put him to a decison where he might push back and if he called he was getting horrible odds.

Sadly, he folded after some pause. I think the extra $20 might have scared him off.