Birkenstock Leather Gizeh Unisex Birkenstock Leather Stone Sandals Stone 1f8b2f1

Synthetic sole
Signature BirkoFlor upper with nubuck finish
Anatomically correct natural cork suede lined footbed
Raised toe bar to encourage natural gripping motion
Neutral heel profile and deep heel cup
Flexible EVA outsole and narrow fitting
Birkenstock Leather Gizeh Unisex Birkenstock Leather Stone Sandals Stone 1f8b2f1 -
  • Birkenstock Leather Gizeh Unisex Birkenstock Leather Stone Sandals Stone 1f8b2f1
Igniting Meaningful Change

We help the social and public sectors do good, even better.

Spark Blog
Birkenstock Leather Gizeh Unisex Birkenstock Leather Stone Sandals Stone 1f8b2f1

In May 2018, our Social Innovators Breakfast Series launched a special summer focus: Navigating the Unintended Consequences of Systems Change. Though we anticipate Diversity, Equity, and Inclusion (DEI) will be an important component for all events in the series, we decided to kick things off with a DEI-specific topic: Navigating the Unintended Consequences of moving…

Spark Blog

Spark News

Individuals Matter. Many of the problems our partners are working to address cannot be solved by organizations working in isolation: our impact is greater when we work together and ensure those most impacted by the change are part of the problem-definition and solution. Spark’s approach to systems change is fundamentally grounded in an inclusive and…

Spark Newsroom


A new article in the Foundation Review describes the tools we used in partnership with Harder+Company and The Civic Canopy to support an adaptable design for The Colorado Health Foundation’s (TCHF) Creating Healthy Schools funding strategy.

The article dives deep into the principles of emergent philanthropy, and how TCHF worked to co-create their strategy, funding and process with key stakeholders and grantees in Colorado’s school system.

Read the article...

Tools for Social Innovators
Solving complex problems rarely happens among a small group of stakeholders who share many things in common. When facing challenging yet critical decisions, the quality of the process can mean the difference between a poor decision (or even a lack of a decision) and a high-quality decision worth trying to implement. Learn how to navigate the process.
Spark Policy Institute

2717 Welton Street
Denver, CO 80205
P: 303-455-1740
F: 303-455-9910

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