*Sizing Note* Carhartt are more generously sized you may need to consider dropping down a size from your traditional workwear clothing. For a heavyweight t shirt for added warmth this season then why not try out the Non-Pocket t shirt by Carhartt. This relaxed fit t shirt is great for teaming with a pair of jeans for a casual day to day look or as part of a layering up system with a jumper and jacket when going for a hike., Relaxed Fit. 6.75 Oz/Yd2 - 229 Gsm., Black French Blue White 100% Cotton. Carbon Heather Iron Ore Heather 60% Cotton/40% Polyester., Heather Grey 90% Cotton/10% Polyester. Jersey., Short Sleeve. Rib Knit Crew Neck., Side-Seam Construction Minimizes Twisting. Carhartt Label Sewn On Hem.