Marlow Crossbody Strap Set
- Unit price
- / per
Adjustable phone strap and detachable wallet set made from premium thermo PU leather. Includes a secure attachment patch for hands-free everyday carry.
Strap and Wallet: Carries your phone, cards, and cash in one crossbody set.
Thermo PU leather, chosen because straps under daily load need strength, not stretch.
Metal hooks and a universal patch that clips to most phone cases in seconds.
Adjusts up to 70 cm and stays comfortable through a full day of carry.



Marlow pairs an adjustable crossbody strap with a detachable wallet for cards and cash. We built it from thermo PU leather on purpose: a strap that carries your phone all day needs a material that holds its shape under constant load, where natural leather would stretch and crack. Metal hooks, a universal attachment patch that works with most cases, and a strap that adjusts up to 70 cm. Clip it on in seconds, and your hands are free for the rest of the day.
- Premium thermo PU leather for lightweight strength
- Detachable wallet for cards and cash
- Adjustable crossbody strap
- Universal fit with most phone cases
- Secure attachment patch included
- Lightweight and comfortable for daily carry
- Durable metal hooks and hardware
- Hands-free design for errands, travel, and commuting
- Easy to attach and remove in seconds
- Strap length: max. 70 cm
Orders are typically prepared and shipped within 1 business day from our warehouse in Naples, FL or directly from our workshop in Istanbul (Excluding holidays and weekends)
Domestic Orders (USA)
The delivery time varies based on the selected service and destination. For regular post, the delivery time ranges from 3 to 10 working days, depending on the shipping address. Free shipping (USPS Ground) typically takes 7-10 business days.
International Orders
International shipments are sent to most locations via USPS or Fedex. We do this to ensure the best possible shipping experience.
Orders typically take 14-21 Business days to reach international destinations, but carriers can sometimes have unexpected delays, resulting in up to 4 weeks for some destinations. Orders may also require up to +1 day to process, especially if you are located in a different timezone than the warehouse we are shipping from.
Please note: Some countries outside of the U.S. may impose additional taxes and/or duties, such as VAT, to import an order. The taxes and/or duties related to an order are the responsibility of the customer. BlackBrook Case does not personally pay for import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the responsibility of the buyer which are determined by your national and governmental laws.
Click here to view our full shipping policy.
Please note this item is a Hassle-Free Returns Within 30 Days of Delivery
We want you to be completely satisfied with your purchase, which is why we offer a simple return policy. Most items can be returned within 30 days for a refund, and returns are free within the USA.
Please note that personalized / customized items are not eligible for return.
Click here to see our full refund and warranty policy.
We take pride in the quality of our products and back each item with a 1-year manufacturing warranty against manufacturing defects.
If you experience an issue within this time frame due to faulty materials or craftmanship, we'll repair or replace it. Read more here
Leather is a natural material. Minor color changes and discrepancies on its surface are not quality defects. They are part of the nature of the genuine leather products.
Over time, your leather item will take on a warmer, softer look and get a unique patina. To keep your leather looking better, you can clean it occasionally with a clean white cloth and a neutral, natural leather-care cream.
Note about MagSafe Charging: When you regularly use MagSafe chargers and accessories in conjunction with the genuine leather cases, you might observe the emergence of a ring on your case. This is entirely normal, and you can minimize its visibility by applying a leather conditioner.
Click here to find our full leather care guide.
Adding product to your cart
Top layer of the hide. Ages, doesn't peel.

Hassle Free 30-Day Returns
1-year manufacturing warranty
Free Shipping Orders over $120 in USA
Find Your Perfect Leather Companion
Burkley Classic Wallet Case
$129
- Unit price
- / per
for iPhone 17 Pro Max
7 colors





- +2 more
Burkley Classic Wallet Case
$129
- Unit price
- / per
for iPhone 17
3 colors
Frequently Asked Questions
Because it hangs from your shoulder with a phone on the end of it all day. Natural leather stretches and eventually cracks under constant tension. Thermo PU holds its shape under that load, which is why we chose it for the strap and wallet. Our cases stay full-grain. This piece has a different job.
Yes, with most cases. The included attachment patch sits between your phone and case, and the strap clips to the patch with metal hooks. It works with our cases and nearly any other snug-fitting case. Very loose or rubbery cases can let the patch shift, so a firm fit matters more than the brand.
The hooks and rings are metal, not plastic, and the patch is rated for daily carry. Check two things when you first set it up: the patch is seated flat with no air gaps, and your case fits the phone tightly. If both are true, the strap will outlast your interest in the phone it's carrying.
It holds a few cards and folded cash, and it unclips from the strap in seconds. Wear the full set for errands and travel, or drop the wallet and carry the strap alone. It's not a replacement for a full wallet, it's the two cards and twenty dollars you actually leave the house with.