You need to consider the shape of the pocket, for instance, a diagonal or curved pocket, or a vertical pocket.

您需要考虑口袋的形状，例如对角线或弯曲口袋或垂直口袋。

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The utility model is in a shape similar to a pen which can be hung in a pocket of clothes, having the advantages of portability, quick removal and installation of turning heads and easy use.

本实用新型形似钢笔，可插挂于衣裤口袋内，便于随身携带，可快速拆装旋头，使用方便。

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In the same way, it should not be possible to patent the shape of a handheld smartphone designed to fit comfortably into a pocket or purse, or one that offers touch screen usability.

FORBES: Apple v. Samsung: The Rights To Rectangles

For example, the brand name and logo hang tag and distinctive pocket stitching on a pair of jeans could be registered as protectable trademarks, and the unique shape of a dress could be registered as protectable trade dress.

FORBES: Protecting Fashion Designs