Replying to Travel Help Fast!!!!!!!!

Hey NS i need your help.
tomorrow i leave for a ski trip and was planning on packing my skis boots poles ski gear and a few clothes inside my ski bag so i could just carry a backpack on and not have to check any other bags. but my concern is that i will be charged for an oversize bag because i will have items other than just skis and poles inside my bag. please let me know asap so i can pack appropriately any help is much appreciated. have any of you had issues surrounding this topic or am i overthinking it. i am flying us airways / american airlines by the way if that helps

cheers,

Caleb