My sons have always worn Muck. Im 5?0 and weigh 166lbs i ordered a L. You barely notice it with moderater use. Producto ideal New Balance did it again A company cannot assume that everyone will know how to put this item together. Tenía un poco de duda en que tan fácil iba a ser instalarlo y la calidad del material, sin embargo al verlos es casi idéntico a los originales y la instalación además de ser fácil posteriormente no se despega ni da problemas. Im using the headset mostly for making business calls (hours a day) when Im in coffee shops, and theres some noise around me, and for some music (although music its not the main reason I purchased this headset. This pairs wear history is not similar to our other pairs. Used for outside wear.