GrowthFit Interview Series

Lessons from the people who built D2C.

Insights from top marketers, founders, and CRO experts on growth strategies, challenges, and wins to fuel your success. Hear how AI-native teams are putting intelligence to work across their growth stacks.

Listen the full series on Spotify

From DIY Sandals to Global D2C: Steven Sashen on Focus, Friction, and Building What Lasts — Steven Sashen, Co-Founder, Xero Shoes
From DIY sandals to global D2C: focus, friction, and building what lasts
SS
Steven Sashen
Co-Founder · Xero Shoes
34 min
Transforming website visitors into loyal customers with proven strategies — Brian Massey, The Conversion Scientist
Growth
Brian Massey · The Conversion Scientist
Transforming website visitors into loyal customers with proven strategies
Building with Simplicity, Not Just Scale: Lessons from Morgan Decker at Andie Swim
D2C Growth
Morgan Decker · Andie Swim

Building with simplicity, not just scale

Unleashing Growth: Insights from Ankit Shard on Scaling DTC Brands
D2C Founder
Ankit Shard · The Man Company

Unleashing growth: scaling DTC brands

From UX to Trust: Lessons in D2C Growth from Ashish Ranka at Virgio
D2C Growth
Ashish Ranka · Virgio

From UX to trust: lessons in D2C growth

All episodes

Every GrowthFit interview

55 conversations with founders, operators, and CRO experts.

From DIY Sandals to Global D2C: Steven Sashen on Focus, Friction, and Building What Lasts

From DIY Sandals to Global D2C: Steven Sashen on Focus, Friction, and Building What Lasts

The Art and Science of A/B Testing: An In-Depth Interview with Pascal Dietz of DRIP Agency

The Art and Science of A/B Testing: An In-Depth Interview with Pascal Dietz of DRIP Agency

Building with Simplicity, Not Just Scale: Lessons from Morgan Decker at Andie Swim

Building with Simplicity, Not Just Scale: Lessons from Morgan Decker at Andie Swim

Building with Trust, Not Just Trends: Lessons from Ashish Ranka at Virgio

Building with Trust, Not Just Trends: Lessons from Ashish Ranka at Virgio

Building Trust, Not Just Funnels: Lessons from Aman Nigam at Swiss Beauty

Building Trust, Not Just Funnels: Lessons from Aman Nigam at Swiss Beauty

Unleashing Growth: Insights from Ankit Shard on Scaling DTC Brands

Unleashing Growth: Insights from Ankit Shard on Scaling DTC Brands

Utkarsh Rai

Utkarsh Rai

Robert Pavlik

Robert Pavlik

Neil Roy

Neil Roy

Mita Mandawker

Mita Mandawker

Mike Korba

Mike Korba

Matt Snodgrass

Matt Snodgrass

Laura Buczynski

Laura Buczynski

Fiona Stevens

Fiona Stevens

Bryant Lau

Bryant Lau

Bob Sparkins

Bob Sparkins

Andy Lambert

Andy Lambert

Aazar Ali Shad

Aazar Ali Shad

Tarah Darge

Tarah Darge

Build an authentic brand that your audience can connect with

Build an authentic brand that your audience can connect with

Developing a funnel focused marketing strategy

Developing a funnel focused marketing strategy

Choosing marketing channels like an investment porfolio

Choosing marketing channels like an investment porfolio

Emilia Korczynka

Emilia Korczynka

New-age marketing mantra: Experimentation and Community building

New-age marketing mantra: Experimentation and Community building

Corey Haines

Corey Haines

Aparna Kulkarni

Aparna Kulkarni

Vishal Prasad's Journey to becoming a Performance Marketer from being an Intern.

Vishal Prasad's Journey to becoming a Performance Marketer from being an Intern.

Decoding D2C Triumph: Journey, Strategies, and Future Insights from Amit, AVP of Growth at MamaEarth

Decoding D2C Triumph: Journey, Strategies, and Future Insights from Amit, AVP of Growth at MamaEarth

Decoding the Science of A/B Testing with Deborah O'Malley: A Comprehensive Exploration

Decoding the Science of A/B Testing with Deborah O'Malley: A Comprehensive Exploration

Optimizing the landing pages of paid campaigns: Best Practices for Higher Conversion Rates

Optimizing the landing pages of paid campaigns: Best Practices for Higher Conversion Rates

Unveiling the Secrets of Conversion Optimization: Turning Visitors into Valuable Customers

Unveiling the Secrets of Conversion Optimization: Turning Visitors into Valuable Customers

One sure shot hack for D2C marketing

One sure shot hack for D2C marketing

Understanding the Challenges of D2C Marketers in Beauty Care Products

Understanding the Challenges of D2C Marketers in Beauty Care Products

Demand Generation is a Number-driven Role with an Art and Science to it

Demand Generation is a Number-driven Role with an Art and Science to it

Understand user behavior and use an evidence based model for experimentation: Ruben De Boer

Understand user behavior and use an evidence based model for experimentation: Ruben De Boer

"Vuja-De" Understanding marketer's thinking and how to solve repetitive problem differently by Shri Mithran

"Vuja-De" Understanding marketer's thinking and how to solve repetitive problem differently by Shri Mithran

Product-led journeys or Customer-led journeys? What’s your pick?

Product-led journeys or Customer-led journeys? What’s your pick?

Prioritize Goals, Solve One Problem at a Time — a Mantra for Product Marketing

Prioritize Goals, Solve One Problem at a Time — a Mantra for Product Marketing

It's all about nurturing Content, Customers and Community

It's all about nurturing Content, Customers and Community

Make it All about your Customer, Not your Product

Make it All about your Customer, Not your Product

Watching out for the spectrum of personalization

Watching out for the spectrum of personalization

Busting the Common Myths about Testing for Conversion Rate Optimization

Busting the Common Myths about Testing for Conversion Rate Optimization

How Impactful Personalization Optimizes Conversions

How Impactful Personalization Optimizes Conversions

Getting Buy-ins from Decision Makers is Important for CRO Processes: Jeremy Epperson

Getting Buy-ins from Decision Makers is Important for CRO Processes: Jeremy Epperson

Failed Experiments are Loss Preventions in CRO

Failed Experiments are Loss Preventions in CRO

“Customers make decisions based on emotions not on logic or rational arguments.”

“Customers make decisions based on emotions not on logic or rational arguments.”

Creating A Distraction-free User Journey with CRO Experimentation and Prioritization

Creating A Distraction-free User Journey with CRO Experimentation and Prioritization

Conveying value proposition in the right way is crucial in product marketing: Hannah Sackett

Conveying value proposition in the right way is crucial in product marketing: Hannah Sackett

Making the Best of Data-driven Marketing

Making the Best of Data-driven Marketing

Carving a Niche in Growth Marketing is all About Maintaining Consistency

Carving a Niche in Growth Marketing is all About Maintaining Consistency

Focus on personalizing customer centric communication the right way

Focus on personalizing customer centric communication the right way

The Conversion Journey From A User To A Customer For Marketers By Arun Pillai

The Conversion Journey From A User To A Customer For Marketers By Arun Pillai

Applying Psychology and User Research in CRO

Applying Psychology and User Research in CRO

Making the right choices from tactics to technology

Making the right choices from tactics to technology

Acing Business Development and Partnerships

Acing Business Development and Partnerships

Why listen

Lessons from the people who built D2C

🧠

Hard-won insight

Founders and operators share what actually moved the needle.

🎯

Growth-focused

Every conversation is about lifting conversion and revenue.

🔁

Bingeable

Short, sharp episodes you can watch between meetings.

Themes

What we cover

📈
Growth
🧪
Experimentation
🤖
AI & CRO
🔮
The future
Never miss an episode

Fresh D2C growth lessons, in your inbox

New interviews drop regularly. Get each one — plus the key takeaways — the day it goes live. No spam, unsubscribe anytime.

Join 12,000+ growth marketers

Straight answer

What is the GrowthFit interview series?

GrowthFit is CustomFit.ai’s interview series featuring top D2C marketers, founders, and CRO experts sharing what actually moved the needle. Short, tactical conversations you can watch on-demand and free.

At a glance

Top operators, not pundits
Tactical, growth-focused
Short & on-demand
Free to watch
How it works

How to watch

1

Browse

Pick an episode by theme.

2

Watch

On-demand, any time.

3

Take notes

Each has clear takeaways.

4

Apply

Try the idea on your store.

Who it’s for

For growth-minded teams

🎯

Marketers

Steal plays from the best.

📊

CRO teams

Hear how experts experiment.

🚀

Founders

Learn from those who’ve scaled.

Every conversation is a masterclass — these are the lessons you usually only get over coffee with a veteran.
DO
Deborah O’Malley
Founder · GuessTheTest
The complete guide

Understanding the GrowthFit interview series

The GrowthFit interview series features top D2C marketers, founders, and CRO experts sharing what actually moved the needle for them. The conversations are short, tactical, and free to watch on demand.

Each episode distills hard-won lessons — the experiments that worked, the ones that didn’t, and the operating principles behind a high-velocity growth program — into takeaways you can apply to your own store.

It’s the kind of practitioner insight you usually only get over coffee with a veteran operator, collected in one place for the CustomFit community.

Who is it for?

Marketers, CRO teams, and founders who want to learn how experienced operators run experimentation and growth.

Is it free?

Yes, every interview is free to watch on demand.

Who do you interview?

Top D2C marketers, founders, and CRO experts — practitioners, not pundits.

Where can I watch?

Right here in the interview series, on-demand and free.

Can I be a guest?

We’re always looking for sharp operators — reach out via Contact.

Do I need a developer to use CustomFit.ai?

No. Marketers build experiments and personalized experiences in a no-code visual editor; developers can use the API and SDKs when they want deeper control.

How quickly can I get started?

Most teams install in minutes via a single script tag or the Shopify app and ship their first experiment the same week.

Want to be on GrowthFit?

We feature D2C operators and CRO experts with a story worth sharing.

Built for every D2C category

🧴
Skincare
💄
Beauty
🌿
Wellness
F&B
👟
Apparel
💍
Jewelry
🛋️
Home
🍼
Baby
Live · Right now
Mamaearthfree-shipping band +12.4% AOVGIVAfestive collection page +34% revenueBellavitaPDP CTA test +27.4% CVRKapivaQuiz-driven recs +9.48% CTRThe Sleep Colanding personalized 2× capturesPlumReturning shopper swap +18.2% CVRMamaearthfree-shipping band +12.4% AOVGIVAfestive collection page +34% revenueBellavitaPDP CTA test +27.4% CVRKapivaQuiz-driven recs +9.48% CTRThe Sleep Colanding personalized 2× capturesPlumReturning shopper swap +18.2% CVR