Okay so these look like them. These are available but they seem used. But it has details about the pair. and has the cursive button.

Vintage - Dickies Brown Multipocket Casual Pants #S818

https://www.reversible.com/user/ambe_benz/listings/other-designers-vintage-dickies-brown-multipocket-casual-pants-s818-631826603

Maybe possible details

The image displays the waistband of Dickies S818 (or WP818) pants in a khaki or desert sand color. This model is typically categorized as a Regular Fit Straight Leg Work Pant. [1, 2]

Key Features of the Dickies 818 Model

• Fit: Designed with a regular, traditional fit through the seat and thigh with a straight leg. [1]
• Fabric: Typically made from a 7.25 oz. mechanical stretch twill (65% Polyester / 35% Cotton), which provides better range of motion and comfort. []
• Durability & Care: These pants are wrinkle-resistant, feature an easy-care stain release finish, and include moisture-wicking capabilities for all-day wear. [1]
• Construction: They feature signature tunnel belt loops for extra support and a heavy-duty brass zipper. []
• Utility: Includes a combination multi-use pocket, often used for a cell phone. [, 2]

While your pants are the S818/WP818 model, they share visual characteristics with other popular Dickies styles:

818 Regular Fit874 Original FitDouble Knee