Mystery Long Sleeve

    FG icon

    Old price $ 32.00 $ 20.00

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


    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 long sleeve just for you. A best-seller? An online exclusive? A retired pattern available no where else? 

    Anything is possible with the Mystery Long Sleeve. 

    A portion of proceeds donated to

    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 63 reviews
    Susan Molyneux
    My mystery long sleeve shirt.

    A great pick I love the color and design.

    Shelly Weddington
    Loving it!

    Love the design, the cause and the shirt quality!

    Amazing shirt

    So cute and comfy! Made my day and so fun for a surprise, absolutely love it. Thank you :)

    Bridget Husk
    Love the surprise!

    I have bought 4 mystery shirts; 2 long sleeve and 2 short sleeve, and I couldn't be more happy. The surprise of which ones I will receive was fun! I highly recommend these shirts! And it supports such a great cause.
    Thank you to the team!

    Lauren Mcdaniel

    Love it!

    Jill Sondergard
    The shirt is nice

    I never thought I would get a white shirt. Can’t ever order another mystery shirt because I hate white shirts

    Taylor Albert
    Sleeves that fit my arms!

    I struggle finding long sleeves that fit my arms since they tend to be on the longer side. With the long sleeves I have NO issues!! Will definitely be buying more of these cute and comfy shirts!

    Jeanette Beebe

    Shirt is a large and its too large for me. It's very baggy on me.

    Brenna Olvera
    Mystery Shirts

    I got two mystery shirts, one for me and one for my mom. We both LOVE them! They are so comfortable and pretty 😍

    Great tee

    I am happy with the mystery tee I received. It's a great color.