I need recommendations on a good boat cover

The cover my bass boat has is starting to slowly let water sip through. It is made of canvass/cloth-like material and its becoming less efficient against rain maybe because its old. I tried using those waterproofing sprays but without success. So far, I'm using a tarp over it as a water repellent. I do not know much about boat covers and hoping that someone from here can point me in the right direction. I would need something decent without breaking the bank. Thanks.

I got one from Iboats.com 6 years ago and it is still in decent shape, price was very reasonable at the time.  Not sure that those canvas ones are meant to be totally waterproof.  Until two weeks ago I kept the boat in covered storage so no leaks.  I guess I'll find out if the cover kept the water out when I go to launch next weekend.

I got mine from Ranger since that's what I have. They fit them perfect. So try the manufacture of your boat. Tell them the options you have like a swim ladder, single console or duel trolling motor type and size and they should be able to fit you boat and choose Sunbrella material or try Iboats.com