The KM 40oz Tumbler
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Details
Details
Your everyday sip, now with main-character energy. The warm cowhide print and glossy amber handle make it a one-of-a-kind accessory, while the roomy size keeps your drinks cold or hot for hours and your water goals on track. It fits most cup holders, travels spill-smart in your tote, and looks perfect in every “what’s in my bag” video.
📦 Please note: The decorative keychain is seen in photos are display props only and are not included with any purchase.
Shipping and Returns
Shipping and Returns
All orders are crafted to order and ship within 2-4 business days.
Delivery takes 7–10 business days via USPS with full tracking and insurance included.
During peak demand, slight delays may occur, we appreciate your patience.
Not right? You have 30 days from delivery to send it back for a refund. Because each piece is made to order we only produce what is actually wanted, which keeps waste down.
The KM 40oz Tumbler
Sizing Chart
91% of our customers reported it's true to size.
If you are between sizes, order one size up for a relaxed fit.
All measurements are in millimeters. sizes may vary by 2-3mm due to manual measurement..
Why everyone's OBSESSED 💕
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★★★★★The design on this is so detailed and pretty. Looks even better in person — my coworkers wouldn't stop asking about it!
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★★★★★Bought it as a gift and ended up ordering one for myself too. The design is stunning and it actually works perfectly — zero leaks!
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★★★★★Took this on beach tour. Keeps ice for hours and the vintage print makes it feel so cozy and nostalgic. Best tumbler I've ever owned.
Questions
The things people ask us before they buy.
What if it looks different in person?
Further up this page, just after the description, you will find photographs taken by customers in their own homes and their own light, next to ours. If the two ever disagree, trust theirs.
What if I order the wrong size?
Open the size guide on this page. It carries the measurements for this piece, how it has fitted other people, and what to do if you fall between two sizes. If it still arrives wrong, you have 30 days.
What if it does not suit my body?
The Model & Fit row gives the height of the model in these photographs and the size she is wearing, so you have something concrete to measure yourself against rather than guessing from a picture.
What if I only wear it once?
Divide the price by the number of times you will realistically wear it rather than by what it costs today. We would rather you bought one piece you reach for every week than three you wear once each.
When will it arrive?
Orders leave us in 2 to 4 business days, or 7 to 10 if the piece is made to order. Delivery is then 7 to 12 business days with USPS, tracked and insured the whole way. Shipping is free worldwide on orders over $100.
What if I want to send it back?
You have 30 days from delivery. Send it back unworn and unwashed with the tags on and we refund you to your original payment method. Email support@slayharbor.com and we will start it for you.