How SNOCKS Scaled from €2M to €50M/Year While Growing Revenue Per User by 148%
SNOCKS started as an Amazon seller doing €2M/year with razor-thin margins and no A/B testing infrastructure. Over five years of partnership with DRIP, we ran 350+ A/B tests — more than 100 of them winners — and generated €8.2M in additional revenue. Revenue per user grew from €2.01 to €4.99 (+148%), average order value climbed from €29 to €51, and SNOCKS scaled profitably from €2M to over €50M in annual revenue. The key: while most brands see RPU drop as they scale, SNOCKS saw it increase every single year.
The Brand
SNOCKS is a German DTC underwear and basics brand founded by Johannes Kliesch. Starting as an Amazon seller, the brand migrated to Shopify to build a direct-to-consumer channel — but faced the fundamental challenge every DTC brand encounters: making the economics work when you're spending heavily on acquisition.
With an average order value of just €29 and low margins on basics products, SNOCKS couldn't profitably scale ad spend. Every additional customer acquired cost more than the previous one, and the revenue generated per visitor wasn't growing fast enough to compensate. They needed a way to extract more value from every user who landed on the site.
The Challenge
The core problem wasn't traffic — SNOCKS was good at driving visitors to the site. The problem was that those visitors weren't converting at a rate or value that made the acquisition economics work at scale.
Revenue per user was stuck at €2.01. AOV was €29 — barely enough to cover acquisition costs on some channels. And with no structured testing infrastructure, the team was making product and UX decisions based on gut feeling and competitor copying rather than actual customer data.
SNOCKS needed to fundamentally change the relationship between acquisition costs and revenue per visitor. Not incrementally — exponentially.
The Approach
We started with a deep consumer psychology research intensive. Through qualitative and quantitative analysis, we identified the psychological drivers that influence purchase decisions for basics and underwear — from fit anxiety to bundle value perception to repeat purchase motivation.
From there, we built a rapid testing protocol specifically designed for SNOCKS' traffic volumes and product catalog. Instead of running 1-2 tests per month sequentially, we ran 6-10 experiments simultaneously, each grounded in specific psychological drivers identified in the research phase.
The compounding effect was critical. Each winning test didn't just generate a one-time uplift — it became the new baseline. And the learnings from each experiment (winners and losers) informed the next wave of hypotheses. As Jeff Bezos said: "Our success is a function of how many experiments we do." Getting 1% better every month compounds dramatically over years.
Key Tests & Results
Search Visibility Optimization
Users who used site search had a 19.24% conversion rate vs 6.87% for non-searchers. But only 0.08% of users actually used search (1,653 of 2.1M visitors) — because it was barely visible. Using the BJ Fogg Behavior Model, we identified that ability (finding the search) and trigger (prompting the action) were both broken. We made search prominent and accessible.
Color Swatches → Real Image Thumbnails
Product color selection used abstract color dots that required cognitive effort to differentiate. We replaced them with real product image thumbnails, reducing the cognitive load for comparing options. Customers could instantly see what each color variant looked like on the actual product.
Bundle Value Perception Test
A/B test redesigning how bundle savings were communicated on product pages. By making the savings amount explicit and visually prominent rather than requiring mental calculation, we increased bundle adoption.
Cart Cross-Sell Optimization
Tested different approaches to cross-sell recommendations in the cart, focusing on relevance and timing of the recommendation. Aligned suggestions with the psychological driver of 'completeness' — completing an outfit or set rather than just adding random products.
Product Page Trust Architecture
A/B/C test restructuring how trust signals were displayed on product detail pages — review placement, social proof indicators, and delivery promise positioning. Three variants tested against each other to find the optimal combination.
Overall Impact
Over five years, the partnership generated €8.2M in additional revenue attributed directly to CRO efforts. But the real story is in the compounding: revenue per user grew from €2.01 to €4.99 — a 148% increase that happened while SNOCKS was scaling from €2M to €50M+ in annual revenue.
This is extremely unusual. Most brands see RPU drop as they scale because they reach less-qualified audiences. SNOCKS saw it increase every single year. That's the compounding effect of systematic, psychology-driven testing at high velocity.
Average order value grew from €29 to €51 — not through discounting or artificial bundling, but through genuinely understanding what customers valued and making it easier for them to buy more of what they wanted.
The partnership continues today, with DRIP remaining SNOCKS' conversion optimization partner since 2019.
The Takeaway
The SNOCKS case demonstrates that CRO isn't about finding one silver bullet test. It's about building a system that compounds learning over time. With 350+ experiments, the vast majority of individual tests had modest impacts. But layered together, they created a fundamentally different business.
The critical insight: volume matters more than any individual test's impact. Running 100+ experiments per year — grounded in real consumer psychology, not guesswork — creates a compounding advantage that competitors running 12 tests a year simply can't match.
For brands in the €2M-€10M range looking to scale: your bottleneck probably isn't traffic or product. It's how much revenue you extract from each visitor. Fix that, and the acquisition math works at every scale.
DRIP played a crucial role in our growth, generating an additional €14.2M revenue for us. They supported us every step of the way — from underdogs to market leaders. Their expertise helped us stay profitable, giving us the foundation to scale and dominate our market.

Founder, SNOCKS
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