6-pk Amazon Essentials Men's Slim Fit Cotton Crew Neck Undershirts (various) from $10.90

6-Pack Amazon Essentials Men's Slim Fit Cotton Crew Neck Undershirts from $12.10. Available options: X-Small - Medium Grey Heather/Navy Short Sleeve $13.61, Small - Black/Grey Heather Short Sleeve $14.00. Shipping is free w/ Prime or on $35+.