Product Highlights (Selling Points):

1. Waterproof Material - Made of durable Oxford cloth for water resistance.
2. Lightweight Design - Easy to carry without adding extra weight.
3. Versatile Style - Simple solid color design suitable for daily use and street fashion.
4. Multi-functional Pockets - Features internal zipper pockets and a cell phone compartment.
5. Foldable - Can be folded for compact storage.
6. Unisex Appeal - Suitable for both women and couples (as implied by "couple's bag").

Specifications:

• Material: Oxford cloth (outer), Polyester (lining).
• Size: Medium (specific dimensions not provided).
• Shape: Horizontal square.
• Opening Method: Zipper closure.
• Hardness: Soft.
• Color Options: Black (confirmed; other colors may exist but not specified).
• Shoulder Strap: Single adjustable strap.
• Internal Structure: Zipper pocket, cell phone bag, interlayer included.
• Style: Street trend with stitching details.

Packing List:

• 1 x Shoulder Crossbody Bag (main product).
• No additional accessories mentioned (assumed standalone product).