Weights for skirts

A modesty product for a clever inventor


If you ever wear a skirt, you'll know when the wind blows and struggle to stay modest when riding a bike.

The inventor of these skirt weights decided to solve this need once and for all with a fashion accessory.


Design Management

Concept Sketching & Illustrations

Sketching and illustration while exploring opportunity space not only helps establish narrative and develop aesthetics, it is also the cheapest form of 'prototyping' as it allows us to evaluate ideas and applications early in the product development cycle.

design culture

User Scenarios & Narrative

Testing ideas and contextualizing them with refined illustrations, user scenarios, and physical prototypes is crucial for deciding what's in and what's out before taking bigger steps and placing bigger bets. Using a process for team alignment can help prevent arbitrary decision making.

how to launch a product

Materials and Manufacturing Strategy

The selection of appropriate materials and designing for manufacturing processes and assembly has more implications than the aesthetic. The choices made in the design phase cascade into your supply chain and exponentially effect cost, margin and channel marketing.


create the invention
how to invent
Build and invention
Invention Help
Design Dimensions

While the product development process can be customized to apply effectively to the needs of the customer and adapt to changing business objectives, Principal Design's 5 step process is a framework that guides the design team and encourages communication and stable execution.

design process


Principal Design approaches every project methodically. The success of a product development project depends upon the clarity and strength of the process. Organized into the five stages most proven to leverage our design efforts, Principal Design's purpose-driven frameworks were developed and refined to reduce risk while balancing exploration with execution. Our creative strategy is divergent to leverage resources and discovery, and convergent to select for the best opportunities.

to top button