Best there is
Ive owned the 50L reg and the 65L tall version Arrakis first off lemme tell you if your built in the back or chest area and are around 6 feet don't get the 50 it is too small you can't get that proper 45 degree strap alignment no matter how much you adjust unless your built like Pee Wee Herman. The 65L is still a bit tight in the underarm area of the strap my only gripe. This bag could hold up to a blast of c4 and still be waterproof. I use it as my B O B bag, it will outlast me and the earth. Theres no need for compression straps unless your carrying gold bricks even then doubtful. Now if you plan to use it as a flotation device it will barley let a drip of water in at the end of the zipper so don't hold it at the bottom of a pool. Quality is incomparable. I lucked out and got an orange one. Best part made in Canada still.