Jockey via eBay offers its Jockey Women's Long Sleeve Henley with Pocket in Black, Grey, or Oatmeal Stripe for $9.99 with free shipping. That's $20 off list and the lowest total price we could find. It's available in sizes S and M, although not in all size/color combinations.
The planet will thank you, your local (overwhelmed) landfill will thank you. Even your budget will thank you.