Mack Weldon 18-Hour Jersey V-Neck Undershirt Review

Buying this shirt ended a decades long search. I’m serious, as I’ll explain below.

Before I get started on why I love this shirt, let’s start with the basics. The 18-Hour Jersey from Mack Weldon, is made of three different fabrics, cotton, modal, and spandex. This makes for a VERY soft fabric.


  • Soft
  • Fits well – slim fit
  • Long length (more on that below)


  • Price – not cheap at $32 each
  • Limited colors – only white and grey.