A nice touch is the ribbed fabric around the round neck for added hold.
District Mens Long Sleeve GrayPerfect Tri Crew Neck Tee Therapy Brewing Medium
You will find that a solid T-shirt like this is a foundational wardrobe item.
District Mens Long Sleeve Perfect Tri Crew Neck Tee DM132
You will find that the sizing runs from XS all the way up to 4XL, so there’s a fit for everyone.