You will find that a solid T-shirt like this one is a wardrobe workhorse.
Soffe Military Dri-Release Moisture Wicking Performance Single T-Shirt 995A New
What stands out is the lack of side slits, which men often find unnecessary.
Soffe 100% Cotton Adult Crew Neck Long Sleeve Shirt
This shirt uses a regular fit, so the back doesn’t bunch up when you sit.
NEW XL Soffe 50/50 Military US Army USAF/T-Shirt Undershirt 3-Pack – OCP Tan 499
This T-Shirt is cut with a straight hem that looks neat and modern.
NEW Soffe Military US Navy 100% Cotton T-Shirt Undershirt 3-Pack – Coyote Brown
What makes it a winner is the solid design, which is endlessly adaptable.