. Madewell - Northside Vintage Muscle Tank. Color Light Hthr Grey. On sale for $14.85. MSRP $16.50.. 5.0 out of 5 stars25th Exclusive+3Brand NameMadewellProduct NameNorthside Vintage Muscle TankGenderWomen'sColorLight Hthr GreyPrice$14.85MSRP: $16.50Rating5Rated 5 stars out of 5(6)