Dickies Men’s Shirts (Size Long) From $2.52 Amazon “Add On”

Amazon has the Dickies Men’s Long-Sleeve Work Shirt, size "Long" for cheap!
Link: https://www.amazon.com/gp/product/B001D6FEJM/
Color "desert sand" – just $2.52 as an "add on" item.
Color "gulf blue" – just $4.56 as an "add on" item.
I believe regular price is $40.
Also see the Dickies Men’s Long Sleeve Heavyweight Crew Neck, size "Long" for $3.70 in color "orange." Reg. price is $24. Add on item.
Link: https://www.amazon.com/Dickies-Sl…00B6EA42I/
Also see the Dickies Men’s Short-Sleeve Heavyweight Crew-Neck T-Shirt, size "Long" for $2.71 in color "white." Reg. price is $20. Add on item.
Link: https://www.amazon.com/Dickies-He…B00B6EE1LI
I’m not sure what size "Long" actually means, but at <$5 it’s not a huge risk.