Mack Weldon - WARMKNIT Long Underwear in Charcoal Heather distressed clothing The intricate image is set

The intricate image is set on a hand dyed t-shirt

Light weight with a one of a kind dye wash that gives they shirt a cool blocked look

This design continues to be one of the most popular styles

Finishing touches

We love the way color wash and the clean lines - perfect for everyday wear

Mack Weldon - WARMKNIT Long Underwear in Charcoal Heather distressed clothing The intricate image is setMack Weldon arguably makes the best men's underwear, and now some of the best "Long Johns". The reinvented thermal long underwear uses their WARMKNIT fabric which is made with insulating Thermolite technology and a micro waffle knit for lightweight warmth. Features include a No Roll Waistband, Stay Put Ankle Cuffs, Functional Fly and is Tagless for comfort. 43% Modal 38% Thermolite Polyester 15% Wool 4% Spandex Insulating Thermolite technology Micro