Replying to Company Question

Hy so my roomate and I have been trying to figure out this logo. He snowboards i ski and we have seen riders from both sports repping this logo on all their shit but cant figure out what company it is for. The symbol is a upeer case A in rounded point letters with a mix b/t an astrik and a plus symbol at the top of it and then a upper case S except half the size of the A. If anyone knows what it is please help!!! thank you very much!!