"the good"

[Odessa Dawn]

But money is always short. "Blankets are not cheap -- the good, thick ones are $12 to $13 each," Rifai said. "International organizations do not help us. We barely hear or see from the Red Cross or UNHCR."

More: Winter Is Coming - By David Kenner | Foreign Policy

Does the good mean the best? Is it common expression among native English speakers? Why don’t we use Irregular Comparison?

[emsr2d2]

"Good" means "good". It's the opposite of "bad". It means nothing more and nothing less.

This blanket is thick.
This is a good blanket.
This blanket is thin.
This is a bad blanket.

I imagine the best thick blankets available probably cost a lot more than $13!

[SoothingDave]

"Good" is an adjective. The good ones. The thick ones. The good, thick ones.