Not all of the tips are memory foam. 0 already installed. Really pleased with these shoes! ????????? (b) With regard to the packaging negative, Synergys shipping wrapping (in my case) consisted of a thin plastic bag and thin bubble wrap. Fits great, but wish they also offered one made of higher end materials. mic doesnt work. The short sleeves are also a bit longer and a relaxed fit which is ideal to conceal arm flab. They dont hurt my feet at all. For those of you who are interested, I installed as follows.