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Slate Blue The Boyfriend Collection

From $35

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This month your purchase supports The Trevor Project

This item is MagSafe® compatible

Grip Color: Black
Understated, versatile, and undeniably cool—meet Slate Blue from the Boyfriend Collection. Inspired by your favorite broken-in tee or that perfectly faded baseball cap, this case is made for guys who like to keep things simple and sharp. The muted navy hue is clean and classic,... Read more

Bold + MagSafe® Specs

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Protection

Slim

Protective

Very Protective

Weight

Light

Medium

Heavy

Orders are typically processed & shipped within 1-3* business days:

  • 🇺🇸 U.S. Shipping: typically delivered in 2-5 business days once shipped
  • 🌎 International Shipping: shipped via DHL or USPS First Class Package International (delivery time varies based on country)

*Note: During the holiday season, please allow up to 3 business days for your order to ship. Shipping times may be slightly longer due to carrier delays.

To track an order, click here.

  • Don't love it? Ship it back within 30 days for a FREE exchange (shipping included) or return it for a refund (just pay shipping!)
  • Note: To be eligible for return, the item must be unused, and in it's original packaging.

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Carbon neutral

At Casely, we understand the responsibility that we have to protect the planet and future generations. That's why we've made huge changes to make our company even more environmentally conscious. While we know there is still much to be done in the years to come, we are excited to share the sustainability efforts that Casely now has in place:

FSC Certified Biodegradable & Compostable Packaging: All new products as of Fall 2021 will be packaged in our brand new FSC-certified biodegradable & compostable packaging 
Recycled Materials Recycled Material: All cases are manufactured from 50% recycled TPU materials
Non-toxic materials Non-Toxic Chemicals: All cases are printed with dyes thats are non-hazardous, non-toxic, and eco-friendly.
Charitable Contributions Casely has donated $101,005.21 (& counting!) to environmental causes and organizations through our #EveryCaseCounts initiative Learn more ➔
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buy it together

Why shop with us?

Bold + MagSafe® Features

Military-Grade Protection

A Case Built for the BoldUltra-protective: Built for your boldest behavior

Accessory Compatibility

Built-in MagSafe MagnetCompatible with MagSafe accessories & wireless chargers

8ft Drop Protection

Shock-Absorbing Air PocketsOur air pocket technology cushions your phone from drops of up to 8ft

Slip-Resistant

Textured Side GripsHelp keep your phone firmly in hand

Screen + Camera Protection

3mm Ultra-Raised LipProtect your screen & camera from surface drops

Ports + Buttons

Deep CutoutsKeep out grime without obstructing access or sound

The Boyfriend Collection

It's finally here... a collection designed just for him, but let's be honest, we’ll definitely be stealing. With vintage-inspired prints, deep earthy tones, and utility-core neutrals, these cases are built for boat days, road trips, and all your summer escapes. Effortless, nostalgic, and totally shareable.

Shop the Collection

#EveryCaseCounts

Your purchase makes a difference. For every case purchased, 5% of net sales are donated to our charity-of-the-month.


This month, your purchase supports The Trevor Project.
Learn More

Customers Also Bought

Overall rating: 4.923077 / 5 from 39 reviews.

AI Generated Review Summary

Slate Blue from The Boyfriend Collection is a versatile and understated phone case that appeals to those who prefer a simple and sharp aesthetic. Its muted navy hue is clean and classic, making it suitable for various settings. Customers appreciate its stylish appearance and the perfect color choice.

Summary topics

  • Aesthetic Appeal: 20%
  • Color Choice: 20%

Review topics: [].

Review highlights

  • "I love this case, the protection is great and the color is perfect."Amy W.
  • "He likes the look and feel of it."Beverly S.
  • "Nice blue color, solid case, and good for a guy that doesn’t want anything on his phone case."Jessica H.

Reviews

Great Low-Key Case

"I bought this for my husband. It's a good quality, solid protective case with a style/design that's minimal and suits him. The only thing we wish is that it had a bit more matte finish to the overall case, rather than just the grip on the sides, to keep of from slipping out of the hands less easily and also to hide scuffs and scrapes when dropped better."

Holly R. (5/5)

Wonderful!

"My husband loves this phone case. He was a die hard Otter box until this phone case, he loves it and it protects his phone. He loves the solid color with no design."

Caitlin L. (5/5)

Slate Blue Case

"Looks good and fits well, not too slick or sticky to hold, buttons are still easy to press"

Anna M. (5/5)

Will continue to repurchase with each phone upgrade

"Love the quality of these cases! I had a MagSafe case + a screen protector on my iPhone 11 Pro Max for six years and it kept the phone completely protected the entire time and never dulled. I recently upgraded to an iPhone 17 Pro Max in deep blue and this slate blue case looks great with it. I love the grips on the sides and the bumpers around my cameras and buttons."

Sacia B. (5/5)

Great cade

"Great case. Fits well and works great to protect my phone. Arrived quickly and was well packaged."

Amy S. (5/5)

Love this company and their

"Love this company and their cases! This is the second one I've owned, and it did not disappoint. Both cases were from the Bold collection and protected the phone when dropped (as I am not the most graceful with phones). Stylish designs and fast shipping are a big bonus! They will be the only cases I buy in the future. Thank you!"

Deborah C. (5/5)

Cute blue case for anyone!

"I got this case for my fiancé , in his line a work a durable case is 100% needed. It’s so durable and reliable. The color is perfect & gender neutral. The design is perfect for anyone. It matches the picture completely."

Celese L. (5/5)

My case fits perfectly. Thanks

"My case fits perfectly. Thanks so much."

Cherie B. (5/5)

Husband loves it!

"Got this for my husband’s new blue iPhone 17 Pro and he loves it! He said it feels less slippery and more protective than the first case he bought from a different brand. The color matches his phone really well, too."

Madeleine (5/5)

Thanks Casely

"The quality and style of this case is excellent. I am confident it will last a long time. Thanks Casely."

Jeannie H. (5/5)

Q&A

About the Slate Blue | The Boyfriend Collection

Understated, versatile, and undeniably cool—meet Slate Blue from the Boyfriend Collection. Inspired by your favorite broken-in tee or that perfectly faded baseball cap, this case is made for guys who like to keep things simple and sharp. The muted navy hue is clean and classic, with just enough depth to stand out without showing off.

With easygoing solids and vintage-inspired prints, this collection keeps it classic, cool, and completely steal-worthy. Slate Blue is one of those colors that works anywhere—office, campsite, or Sunday brunch—and looks just as good on your phone as it does on his nightstand.


Please note: Our Bold Flex (+ MagSafe®) and Essential (+ MagSafe®) cases are made to order. Due to the unique printing process and materials, there may be a slight variation in how the colors appear compared to the digital product photos. In addition, differences in screen resolution, brightness, and other settings may cause colors to look a little different in person. These small variations are completely normal and are part of what makes your case one of a kind.


Available for iPhone 17 Pro Max, iPhone 17 Pro, iPhone 17 Air, iPhone 17, iPhone 17e, iPhone 16 Pro Max, iPhone 16 Pro, iPhone 16 Plus, iPhone 16, iPhone 16e, iPhone 15 Pro Max, iPhone 15 Pro, iPhone 15 Plus, iPhone 15, iPhone 14 Pro Max, iPhone 14 Pro, iPhone 14 Plus, iPhone 14, iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13 Mini, iPhone 13, iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12 Mini, iPhone 12, iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone SE (2020 & 2022), iPhone XS Max, iPhone XR, iPhone X / XS, iPhone 6/6s Plus, iPhone 7 Plus, iPhone 8 Plus, iPhone 6/6s, iPhone 7, iPhone 8, Galaxy S26 Ultra, Galaxy S26 Plus, Galaxy S26, Galaxy S25 Ultra, Galaxy S25 Plus, Galaxy S25, Galaxy S24 Ultra, Galaxy S24 Plus, Galaxy S24, Galaxy S23 Ultra, Galaxy S23 Plus, Galaxy S23, Galaxy S22 Ultra, Galaxy S22 Plus, Galaxy S22, Galaxy S21 Ultra, Galaxy S21 Plus, Galaxy S21, Galaxy S20 Ultra, Galaxy S20 Plus, Galaxy S20, Google Pixel 10 Pro XL, Google Pixel 10 Pro, Google Pixel 10, Google Pixel 9 Pro XL, Google Pixel 9 Pro, Google Pixel 9, Google Pixel 8 Pro, Google Pixel 8, Google Pixel 7, Google Pixel 7 Pro, Google Pixel 6, Google Pixel 6 Pro

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