Pendleton - Whisperwool Muffler. Color Autumn. On sale for $66.56. MSRP $99.50.. 5.0 out of 5 stars+4 colors/patternsBrand NamePendletonProduct NameWhisperwool MufflerColorAutumnPrice$66.56MSRP: $99.50Rating5Rated 5 stars out of 5(3)