Mystery Short Sleeve

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Old price $ 29.00 $ 18.00

  • 🔙Free Exchanges
  • 💝Over $200K Donated
  • 🆓Free stickers in every order
  • 🐢Track a turtle with every purchase
  • Size

    Free Shipping Over $75

    Can't decide which turtle-loving tee to pick? We get it. 

    Let a Shelly Cove team member hand-pick a mystery short sleeve just for you. A best-seller? An online exclusive? A retired pattern available no where else? 

    Anything is possible with the Mystery Short Sleeve. 

    Frequently Asked Questions

    Need more help? Contact Us!

    Every order gets a physical postcard with a unique serial code. Using your special code on our website allows you to get a behind-the-scenes look at a REAL turtle being rehabilitated at the sea turtle rescue!

    Shelly Cove's mission statement is to donate a *minimum* of 10% of net profits annually to sea turtle rescue. In most cases, we are able to donate more - even up to 1/3 of profits!

    So far, we have donated over $200,00 to sea turtle rehabilitation, and other great causes like clean water initiatives, local food banks, scholarship funds, and more!

    Only the best! We use premium garment-dyed, 100% cotton tees. All printed in-house to give you the best garment possible. This prevents shrinking, and gives you a shirt that will last years!

    You heard correctly! Every order gets a free pack of stickers, as well as a turtle tracking card.

    We are a small team, but aim to ship all orders within 3 business days. If you're in the U.S., this means your order will arrive within a week in most cases!

    If you're not sure what size to buy, please reach out to customer service and we can help! If your order arrives and doesn't fit right, we have an easy, FREE exchange policy within 30 days!

    • Free Returns

    • Over $200K Donated

    • Stickers In Each Order

    • Track a Turtle

    Customer Reviews

    Based on 97 reviews
    Chelsey Eslinger
    Mystery T!

    I ordered one for me and my daughters they couldn’t have picked better! Mine was yellow and had flowers which I loved and her shirt was her favorite teal/mint green color! We love them!

    Melissa Burkett
    Love it!

    I love my shirt! I was having trouble picking which design I liked best so decided to let them pick for me. I was a little nervous but I ended up with a super cute blue shirt! The shirt is so soft too I love it! I also love how you get the turtle tracker with an order!


    I was worried about getting an orange or yellow shirt and I ended up getting a yellow shirt, "Happy Daises." However, I love it. It's not something I would normally buy but it's super cute and I can't wait to wear it. I love the mystery when opening my package.

    Allison Hunerdosse
    Mystery shirt

    I love my mystery shirt. It’s a fantastic shade of blue. It says Shelly Cove on front in white and on back is a sea turtle out for a swim. I love him so much. I was going to order this design but it was sold out. I usually wear V neck shirts because crew neck come up to high and choke me. This one was perfect tho. I’m going to wear it to the aquarium!

    Susan Molyneux
    Mystery shirt

    I loved it! Thank you!!

    Andrea Vaccaro

    Beautiful colors and every item fit perfectly

    So cute

    I live my shirt so much and I love the turtle tracker

    sheridan johnston
    I absolutely love this shirt

    I have loved shelly cove for years and I really love the mystery tees. I love the fun surprise in the mail and i have never been disappointed in the design. the shirts are so comfortable and so cute. I love knowing that my purchase is making a difference. For reference I am 5'3" and I wear a small, if i want it oversized I order one/two sizes up!

    Denise Nutting
    Save the sea turtles

    I got my mystery t-shirt, with a beautiful sea turtle on it. Very comfy material. Beautiful colors.

    Elle Gato
    Mystery shirt

    I absolutely love the shirt I received!!! It’s actually the one I was going to buy before I decided I wanted to surprise myself, such a great company and beautiful sturdy products!! Will definitely be buying from Shelly Cove again!!