I had a similar problem to some of the guys on here with it not covering my complete length. As a medical practioner I was motivated in finding a condom that was both long enough and comfortable. I contacted Durex and they sent me a sample of their XXL product.
I now am able to put a condom on with more ease (still a little too tight in girth) but with condom to spare in length! I have about 1 cm of unrolled condom at the base!
I would suggest you larger guys trying these :-) | 
