Case Study

Underwear | Lifecycle Testing

Industry

Intimate Apparel

Project Stage

Pilot Completed

Use Scenario

Repeated wash and daily wear under real consumer conditions

Case Type

Underwear | Lifecycle Testing

Summary

This project evaluated how Leafclock visually reflects accumulated usage and washing exposure in a core underwear product line.

Project Context

Underwear is among the most frequently washed and worn textile products. However, replacement guidance is often limited to general care instructions, leaving a gap between real usage and hygiene awareness.

This project focused on understanding whether a visual lifecycle indicator could support clearer replacement decisions without changing user behavior.

Intimate apparel product context

Testing Objective

The objective of this project was to evaluate:

  • Whether Leafclock's color transition remains clearly visible under repeated washing
  • How accumulated friction and aging affect visual clarity
  • Whether the indicator aligns with expected underwear replacement cycles

Important: The project did not aim to measure bacteria levels or provide medical diagnostics.

Testing Setup and Conditions

Testing was conducted using real underwear products under typical consumer conditions, including:

  • Regular washing cycles
  • Normal daily wear and friction
  • No special handling or protection

Color transition was observed across multiple stages of usage to assess consistency and readability.

Testing Process Video

Washing and usage demonstration

Testing setup and conditions

Observations and Findings

During testing, Leafclock demonstrated:

Stable Color Transition Progression

Consistent color change across usage stages without unexpected variations

Clear Visual Differentiation

Distinct visual differences between early and later lifecycle phases

Integration Compatibility

Compatible with existing label placement and garment structure

These observations supported further evaluation at pilot scale.

Early stage colorMid stage colorLate stage color

Implications for the Brand

From a brand perspective, the project suggested that a visual lifecycle indicator could:

Support Clearer Hygiene Communication

Provide users with a visual reference point for replacement timing

Reduce Reliance on Complex Care Instructions

Simplify replacement guidance through intuitive visual signals

Strengthen Responsibility Positioning

Enhance brand perception without changing product design

Next Steps

Following this evaluation, typical next steps may include:

1

Extended Pilot Production

Scaling up testing to larger production batches for broader validation

2

Calibration Adjustments for Specific Fabrics

Fine-tuning color transition timing based on fabric composition and usage patterns

3

Internal Review Before Scale-Up Decisions

Brand-side evaluation of commercial viability and integration strategy

Each project progresses based on brand requirements and timelines.

Interested in Testing Leafclock with Your Own Products?

Most partners start with samples tailored to their specific use case.