Design Philosophy When we create a killer product we want as many riders as possible to experience it. So for Winter \'20 our unique take on the MTB wet weather Onesie is available in the Singletrack collection as well as MT500. Using the ExoShell20 fabric and sharing many of the features of it\'s big brother, the Singletrack Onesie delivers excellent performance without breaking the bank. Perfect for wet muddy days in the forest or on the mountain, this more accessible wet weather beater is also ideal for conquering the urban jungle on the winter commute. ExoShell20™ With an extremely soft, noise free outer face fabric and a superfine denier tricot inner layer sandwiching the thin PU membrane, Exoshell20™ exceeds expectations of comfort and performance. The 10,000mm waterproof rating ensures water doesn\'t get in and a best in class breathability of 20,000g/m2/24hr keeps you dry from the inside.