I have tried a front bike basket, a front pack, and a sling for taking my dog with me on my bike rides. Although these worked, they did not make me feel secure that my dog was comfortable and safe. This backpack? This thing is great! It puts a little pressure on my lower back and shoulders, as one would expect a backpack to do, but my little dog must be super comfortable in it because he lays down and doesn't wiggle around like he did in the others. There is plenty of ventilation, and he seems to be well shaded from the Florida sun (we do go early in the morning). It is very well made and sturdy, sits upright when I set it down, and is easy to put back on with my dog inside (he's about 5 pounds). I highly recommend this backpack.