Based on the provided details, here's a breakdown of the features of the black polyamide-blended maxi dress:

• Height/Measurement: The dress is maxi in height, meaning it's long, likely reaching the ankles or floor.

• Pattern: The dress has a slim fit pattern, suggesting it's designed to closely follow the body's contours.

• Arm Type: The arms are described as hanging, indicating a loose or relaxed fit.

• Material: The dress is made of polyamide blended with other materials, likely for added durability or texture.

• Collar Type: The collar type is strapless, indicating there are no straps or sleeves covering the shoulders.

• Primer Condition: The dress is unlined, meaning it does not have an additional layer of fabric on the inside.

• Fabric Type: The fabric is plush, suggesting it's soft and luxurious to the touch.

• Product Detail: The dress features artificial feather detailing, adding a decorative element.

• Product Type: The dress is described as straight, possibly referring to its overall shape or silhouette.

• Arm Length: The arms are described as hanging, indicating a loose or relaxed fit.

• Collection: The dress belongs to a design collection, suggesting it's a curated piece with a specific aesthetic.

• Thickness: The thickness of the fabric is described as middle, suggesting it's neither too thin nor too thick.

• Size: The size of the dress is described as long.

• Environment: The dress is suitable for a stylish or nighttime environment, suggesting it's appropriate for evening wear.

• Silhouette: The dress has a slim silhouette, meaning it's fitted closely to the body.

• Technical: There are no technical features mentioned for this dress.

• Pocket: The dress does not have pockets.

• Additional Feature: The dress features a slit, suggesting a cut or opening in the fabric, possibly for added style or movement.

• Belt/Sash Status: The dress does not come with a belt or sash.

• Closing Type: The dress closes with a zipper.

• Printing/Embroidery Technique: The dress is unprinted, indicating there are no printed or embroidered designs on the fabric.

• Persona: The dress is described as sexy, suggesting it's designed to be alluring or seductive.

• Package Included: The package contains a single dress.

This black polyamide-blended maxi dress appears to be a stylish and seductive option, suitable for nighttime or special occasions. Its slim fit, strapless design, and artificial feather detailing add to its allure, while the plush fabric offers a luxurious feel.