I'm looking for a tonneau cover for my 2003 sport 4*4.

What I want is snapless that is also impossible to open when the tailgate is closed. Also one that doesn't leak. Any help is greatly appreciated. Thanks in advance!

 

It sounds like you want a soft tonneau, you wont find anything that's "impossible" to open unless you go for a hard tonneau. There are lots that lock with the tailgate but are still just velco after all. It wouldn't be all that hard to lift open a side or slit it with a knife.
I purchased the Truxedo Lo-Pro that is velcro and locks with the tailgate. Should have it by Wednesday for install.

 

HD or soft cover if someone want to get into your pickup bed they will no matter. If you have things in your bed that need to be secure you might wanna take a look at a toolbox that locks. You should decide on bed cover that will work for your lifestyle. If you use your pick up bed continously or have to haul items that will be over the bed rails you might look at the soft covers since most will rollup and stay secure while the bed is in use. I have the Lorado cover that is made by Agri cover. This cover is very easy to use, durable to any element, stays tight as a drum (has thumb tensioner to adjust the tightness) adds value to your truck, problem free and it looks great. You might want to go into a dealer and try out the variety of covers. They will let you try the different displays and find the right cover for your needs. They will also be there if you should have any problems with the cover.
Good luck!

 

I just had a Pace Edwards Jack Rabbit cover installed. It's the retractable cover that can open/close every 12 inches. It's lockable and is very sleek. From the side of the truck, you can't really see a cover over the bed.

 

i bought the undercover 2 weeks ago really like it so far