Bootees can be worked either from top down or sole up.

Select one of the images to get a pattern.

No specific yarn is suggested, but the designer does mention that the samples were knit with 5ply.

Please note that the finished effect is seamless for baby’s comfort, but this is accomplished by using Kitchener Stitch/Grafting.

From the designer:</br>

It is very easy to adjust everything on this bootee. You can change the leg length and foot depth at will. With slightly more planning you can change the circumference, instep length and general size as well as adding any embroidery, colour or stitch patterns that may take your fancy. In fact there is no reason why you could not make an adult-sized bootee (slipper) with this method.