. Madewell - Northside Vintage Muscle Tank. Color Light Hthr Grey. On sale for $11.55. MSRP $16.50.. 5.0 out of 5 stars25th Exclusive+3Brand NameMadewellProduct NameNorthside Vintage Muscle TankColorLight Hthr GreyPrice$11.55MSRP: $16.50Rating5Rated 5 stars out of 5(3)