Answer:
I may only be given but never bought. Sinners seek me but saints do not. (one word).
I am all around yet to me you are half blind. Sunlight makes me invisible and difficult to find.
You can read me both ways I wear; One way it's a number reversed a snare.
I contain five little items of an everyday sort. You can find all five in a tennis court.
I let water fall on you while everyone else stays dry.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.