Genuine leather Japan leather Mostro Selectable back pocket with card storage notebook-type case

■Notebook-style smartphone case compatible with all models
We offer notebook covers compatible with almost all smartphones. Designed to fit each model, you can use the case with its convenient functions intact.

■MADE IN JAPAN leather with carefully selected coloring
Vegetable-tanned Nume leather with a rare pale pastel color for tannin-based leather. Each piece of genuine leather is carefully waxed by craftsmen by hand, allowing you to enjoy the authentic aging with character. "Mostro (-MOSTRO-)" means "monster" in Italian, named for its intense aging.

■Convenient card pocket included
Recommended for those who dislike thick smartphone cases but want quick access to frequently used cards.
The back of the pocket has an adhesive part, allowing users to adjust the height for ease of use and stick it accordingly.

■Smooth operation of various functions
Each model has camera holes and speaker holes, allowing fingerprint authentication, volume adjustment, charging, and other operations with the case on.
※ Some models cannot be operated with the case on.
※ Compatibility with desktop charging and wireless charging is unconfirmed.

■Handcrafted by artisans
From cutting, attaching the case and leather, edge painting, to finishing stamping, everything is carefully handmade.

■Model-specific resin case
The base polycarbonate case comes in two types: clear and black. You cannot choose due to stock status, but the model-specific case fits your device perfectly.

■Caution
※ This product cannot be used with models narrower than this product, non-flat models, or depending on the position of the camera or fingerprint sensor. Please check the size before purchasing.
※ When storing contactless IC cards, we recommend using the included electromagnetic interference prevention sheet together. (Magnetic prevention sheet is not included.)
※ The pocket is made slightly tight to prevent cards from falling out.
※ Depending on the combination of your smartphone, contactless IC card, and reader, it may not be usable.
※ This product utilizes the characteristics of natural materials. Please understand the unique scratches and patterns of leather before purchasing.
※ Our genuine leather products are not excessively processed to convey the joy of leather aging. Please enjoy the process of the leather adapting uniquely to each user during use.
※ Leather products without belts will have covers that open at first but will close as the leather softens with use.
※ Each item is handmade, so delivery may take some time.

Usually, we ship within 3 to 7 business days, but if the shipping time is noted at the very bottom of the "About this product" section, that takes precedence.
Since each item is carefully handmade in-house to order, there may be times when orders are busy and it takes longer than usual.


Domestic mail is free of charge, and delivery by courier costs 690 yen. Orders over 3,980 yen qualify for free shipping. Overseas shipping charges vary depending on the country.

Genuine leather items have a maximum warranty period of 180 days, and other items have a maximum of 90 days. Initial defects are eligible for exchange.
To ensure our customers can purchase and use our products with confidence, our site offers several "special guarantees" for customers who make a purchase. For details on the warranty, please see here

Do you have any questions before purchasing?
Frequently asked questions from customers can be found here.
For announcements regarding product specifications, please see here.