Growth plan for Marine Layer, 6 Oct 2026
Scale spend. Hold CAC.
Marine Layer sells absurdly soft clothes, and the hero is a Coastal Merino Crewneck Sweater at $158.00. The plan is simple: test many creator-led ads on the knits, kill losers early, and scale spend only while CAC stays under $71.04.
- Target CAC
- $71.04
- New ads a week at peak
- 20
- Creators live by week six
- 10
- Test spend, six weeks
- $24,000
Contents
10 chapters, then the gates and every number’s source.
01 The number
One number to protect: $71.04 CAC on a $148 order
The number I protect is CAC. The guard line is $71.04, which is 0.6 of a $118.40 ceiling built from a $148 average order, 40% margin and one repeat order. Marine Layer's $158.00 merino sweater sits just above that average order. Every test is judged against that line.
Protect
Target CAC: $71.04 on a first purchase
Ceiling = average order × margin × (1 + repeat orders): $148 × 40% × (1 + 1) = $118.40. Guard line = 0.6 × $118.40 = $71.04. Across the ranges: $19.95 to $604.80.
Three moves
- Kill any ad that runs past the guard line of $71.04 without a clear reason to wait.
- Test one variable at a time, so a winner among the merino knits tells us why it won.
- Report daily CAC, so a drift is caught in days, not at the end of the month.
- Free shipping threshold on the site
- $75+
- Published
- Days of free returns
- 365
- Published
- Gift Wrap add-on
- $10
- Published
02 Variety
Merino, alpaca, Cloud 9 fleece: each needs its own ad
Each ad concept has to carry one product, one reason to buy and one hook: a Suri Alpaca Cardigan at $158.00, a Coastal Merino Beanie at $58.00, a Gift Wrap at $10. The table shows how the concepts split; the point is that no ad repeats another.
| Reason to buy | Proof you already have | Ads (proposed) |
|---|---|---|
| Never-itchy merino | Never itchy, no break-in period, just a fabric that feels luxurious from the first wear. | 6 |
| Free returns, 365 days | Free Returns for 365 Days | 4 |
| Free shipping at $75+ | Free shipping on orders over $75 | 3 |
| Double-brushed flannel | Still the softest and most comfortable flannel you’ve ever felt. | 2 |
| B Corp accountability | Less than .5% percent of apparel brands meet their standards for accountability and transparency. | 1 |
| Re-Spun landfill saving | Saving countless clothes from landfill. | 1 |
| New here: 15% off | New Here? Take 15% Off | 1 |
| Total | The ad concepts tab | 18 |
Each row is a reason to buy that the brand already has proof for. The count is how many of the ads carry it: a reason with a single ad is a bet, not a pattern, and the next batch of concepts moves toward the reasons that win.
03 Disturbances
Free returns for 365 days is the risk I'd watch first
| Disturbance | Likelihood | Impact | Owner | Gate (proposed) |
|---|---|---|---|---|
| Free returns for 365 days push net CAC above the $71.04 line | Med | High | Both | Track returns weekly from week two; pause a concept if net CAC tops $71.04 for a full week. |
| Entry items like the $58.00 Coastal Merino Beanie pull average order below $148 | Med | Med | Me | If average order stays below $148 for a full week, shift ads to the $158.00 knits. |
| Creators go off-script on softness or sustainability wording | Med | High | Me | Every video is checked against the claims sheet before it goes live; zero unchecked posts. |
| Event tracking is incomplete, so CAC is read wrong | High | High | Your team | Purchase and return events verified before spend passes the first $3,000 week. |
| Merino knits lead the range, so ad fatigue hits one product family fast | Med | Med | Me | If CTR drops two weeks running, retire the hook and bring in a new concept. |
| Creator onboarding slips and ten live by week six is missed | Med | Med | Both | Two creators live each week; if fewer by Friday, I recruit that same day. |
| Marked-down items like the $46.00 Lexi tee (was $68.00) blur which hook worked | Low | Med | Me | Tests run on full-price products first; sale items only in their own cell. |
Scores are my read from outside the company, re-scored in week one with your data. Each risk has one owner and one gate that can be checked with a number, so nobody has to argue about whether it happened.
04 The ceiling
A $118.40 ceiling, and a $71.04 line well below it
| Line | Value | Status |
|---|---|---|
| Average order | $148 (range $38.00–$448.00) | Assumption Range from the site product prices (Published); the midpoint is a guess |
| Gross margin | 40% (range 35–45%) | Assumption Replace in week one |
| Repeat orders after the first | 1 (range 0.5–2) | Assumption Replace with cohort data in week one |
| Margin per customer, all orders | $118.40 | Calculated Average order × margin × (1 + repeat orders) |
| Guard line for CAC | $71.04 | Calculated 0.6 × the margin per customer |
The math, with the assumed lines
Ceiling = average order × margin × (1 + repeat orders): $148 × 40% × (1 + 1) = $118.40. Guard line = 0.6 × $118.40 = $71.04. Across the ranges: $19.95 to $604.80.
Range across the assumptions: $20 to $605.
The $148 order and 40% margin are guesses until week one replaces them with your real data; the $71.04 line is Calculated from them. Prices like $158.00 are Published.
The ceiling is a range, not one number: the most a new customer can cost before shipping and packaging, which I do not have. Replace the guessed lines with yours and every figure below recalculates.
05 Test ramp
$24,000 of tests across six weeks, starting at $3,000
| Week | New ads × budget / ad (proposed) | Weekly test spend | Cumulative | Creators posting | CAC target (proposed) |
|---|---|---|---|---|---|
| 1 | 12 × $250 | $3,000 | $3,000 | 0 | $71 |
| 2 | 12 × $250 | $3,000 | $6,000 | 2 | $71 |
| 3 | 12–20 × $250 | $4,000 | $10,000 | 4 | $71 |
| 4 | 12–20 × $250 | $4,000 | $14,000 | 6 | $71 |
| 5 | 20 × $250 | $5,000 | $19,000 | 8 | $71 |
| 6 | 20 × $250 | $5,000 | $24,000 | 10 | $71 |
Weeks 1 and 2: 12 ads at $250 each, $3,000 a week, $6,000 cumulative. Weeks 3 and 4: 12–20 ads, $4,000 a week. Weeks 5 and 6: 20 ads, $5,000 a week. Total $24,000 of tests, all Proposed.
The math. Week 1: 12 × $250 = $3,000; Week 2: 12 × $250 = $3,000; Week 3: 16 × $250 = $4,000; Week 4: 16 × $250 = $4,000; Week 5: 20 × $250 = $5,000; Week 6: 20 × $250 = $5,000. Total $24,000 (96 ads × $250). A range such as 12–20 counts as its midpoint.
Weeks one and two test what the brand already has, rewritten per reason to buy. From week three, creator videos enter paid only after they beat their own account median. A range of new ads counts as its midpoint in the spend column.
06 Volume
60 concepts, 6 winners, $54,000 added
More concepts means more shots at a winner. With a hit rate and spend per winner that are Assumptions, 20 concepts give 2 winners and $18,000 added; 80 concepts give 8 winners and $72,000 added.
| Concepts tested / month | Hit rate (assumed) | New winners / month | Spend each winner holds (assumed) | Added spend at target CAC |
|---|---|---|---|---|
| 20 | 10% | 2 | $300 / day | $18,000 / month |
| 40 | 10% | 4 | $300 / day | $36,000 / month |
| 60 | 10% | 6 | $300 / day | $54,000 / month |
| 80 | 10% | 8 | $300 / day | $72,000 / month |
The math. 20 concepts × 10% = 2 winners × $300 × 30 days = $18,000 a month; 40 concepts × 10% = 4 winners × $300 × 30 days = $36,000 a month; 60 concepts × 10% = 6 winners × $300 × 30 days = $54,000 a month; 80 concepts × 10% = 8 winners × $300 × 30 days = $72,000 a month.
The hit rate and the spend each winner holds are placeholders. The first thirty days of tests replace them with real numbers, and the table is recalculated the same day.
07 Allocation
Most of the $100,000 goes behind winners, not guesses
- Meta tests on merino knits and $158.00 sweaters
- $45,000
- 45%
- Winners scaled behind the best creator videos
- $25,000
- 25%
- Creator pay and product seeding
- $20,000
- 20%
- Reserve for a second channel once Meta has a winner
- $10,000
- 10%
Budget to allocate is $100,000 (Proposed); the split moves toward whatever clears the $71.04 CAC line.
The math. 45% × $100,000 = $45,000; 25% × $100,000 = $25,000; 20% × $100,000 = $20,000; 10% × $100,000 = $10,000. Sum 100% = $100,000.
This split is a proposal. It moves toward scaling as winners prove out, and toward testing when fatigue shows.
08 Channels
Meta opens first; the other channels wait for a winner
| Channel | Open when (proposed) | Why wait |
|---|---|---|
| Meta | Week 1, with twelve ads on the merino knits | Creator videos run here first, and CAC reads fastest here. |
| TikTok | A creator video clears the $71.04 guard line on Meta | Same creator videos reused; knit styling shows well in motion. |
| Meta has held a stable winner for two weeks | Seasonal knit looks get saved and searched; unproven for Marine Layer, so it waits. | |
| Google Shopping | Tracking is clean and the feed carries every price | Buyers searching for a merino sweater already want one; the feed carries the $158.00 knit. |
| Email and SMS | Repeat orders start showing in cohort data | Payback needs a second order; flows bring buyers back after the first knit. |
A channel opens when its condition is true, not when the calendar says so. Until then the budget stays where the CAC is earned.
09 Payback
A $158.00 sweater only pays if repeat orders show up
Payback is the real constraint. The PLAN rule: CAC $35 pays back on the first order, $83.40 left. CAC $70 pays back after repeat orders, $48.40 left. CAC $130 never pays back, −$11.60 left, so I stop. CAC $165 is −$46.60: stop. Free returns for 365 days make the first order less certain.
Cumulative margin per customer, order by order, before CAC: $59.20, $118.40.
| CAC (scenario) | First-order margin | Year-one margin | Left after CAC | Payback |
|---|---|---|---|---|
| $35 | $59.20 | $118.40 | $83.40 | First order |
| $70 | $59.20 | $118.40 | $48.40 | After repeat orders |
| $130 | $59.20 | $118.40 | −$11.60 | Never: stop |
| $165 | $59.20 | $118.40 | −$46.60 | Never: stop |
The math. CAC $35: $118.40 − $35 = $83.40 left; pays back: First order; CAC $70: $118.40 − $70 = $48.40 left; pays back: After repeat orders; CAC $130: $118.40 − $130 = −$11.60 left; pays back: Never: stop; CAC $165: $118.40 − $165 = −$46.60 left; pays back: Never: stop.
Read each row left to right: the margin of the first purchase, the margin over the whole horizon, what is left after CAC, and the purchase on which the CAC is earned back. A scenario that never pays back is a stop, not a test.
10 Scope
What I cover on Marine Layer, and what stays with you
Covers
- Meta ad testing: 12 ads a week at the start, then up to 20
- Creator recruiting and briefs for ten creators live by week six
- A claims sheet and landing page briefs from wording on marinelayer.com
- Daily CAC, weekly learnings and monthly cohort payback reports
Doesn’t
- Event tracking setup: I spec it, your team builds it
- Site development and checkout changes
- Product design, pricing and promotions
- Returns and customer service handling
What this plan covers is what I can change inside the ad account and the creator program. Everything outside it is named on the right so nobody assumes it is handled.
Gates, written before spend, so stopping isn’t a negotiation.
| Day | Keep going if (proposed) | Stop or change if |
|---|---|---|
| Day 14 | Tracking verified, $6,000 spent, and at least one concept near $71.04 CAC | Purchase events not trusted: pause spend until fixed |
| Day 30 | New-customer CAC at or under $71.04 on at least one scaling concept | Every concept above $118.40 CAC after the full test ramp |
| Day 60 | Cohort payback on track: CAC $70 or better pays back after repeat orders | CAC stays at $130 or worse: stop, as the payback rule says |
| Day 90 | Two or more winners scaled while CAC holds at $71.04 or lower | CAC above $118.40 for two weeks with no new winner |
Each gate is checked on its day with the numbers in the daily and weekly reports. If the stop condition is true, the spend stops and nothing renews until we talk.
What exists, what’s missing, and the order that’s forced.
| Piece | Exists today | Missing | Forced order |
|---|---|---|---|
| creative | Hero tagged "Coastal Merino Crewneck Sweater", a $158.00 knit | A hook library built per product | 1st |
| creators | Suri Alpaca Cardigan $158.00, Mendocino Wool Overshirt $198.00 | Ten creators recruited and briefed | 2nd |
| claims sheet | Site wording: "absurdly soft clothes", 365 days of free returns | One approved sheet for creators | Week 1 |
| landing pages | Free shipping on $75+ offer shown across the site | A page per creator and product | 2nd |
| reporting | Offer lines on site: $75+ shipping, $10 Gift Wrap | Daily CAC and weekly learnings dashboard | Week 1 |
The order is forced on purpose: creative and creators come first because they are what moves CAC, and everything else waits for that data.
Every number, and where it came from.
| Figure | Where it came from | Type |
|---|---|---|
| $75+ Free shipping threshold on the site | https://www.marinelayer.com/ | Fact |
| 365 Days of free returns | https://www.marinelayer.com/products/tahoe-flannel-shirt-8 | Fact |
| $10 Gift Wrap add-on | https://www.marinelayer.com/ | Fact |
| Product prices $38.00–$448.00 | product prices in the site product data (72 products), read 2026-10-06 | Fact |
| $148 average order · 40% margin · 1 repeat order | Placeholders, replaced in week one | Assumed |
| $71.04 target CAC | 0.6 of the $118.40 margin per customer | Calculated |
| $118.40 margin per customer | Price × (margin − discount), summed over the orders | Calculated |
| $24,000 of tests (96 ads × $250) | Danilo’s plan, matches Month one | Calculated |
| 0→10 creators in 6 weeks · 7 videos per creator a week | Danilo’s plan, matches Month one and the Creator engine | Proposed |
| $100,000 first budget split 45% / 25% / 20% / 10% | Danilo’s plan, re-set with the team in week one | Calculated |
| 10% hit rate · $300 a day per winner | Placeholders, replaced by the first 30 days of tests | Assumed |
| 303 creator videos a month at 10 creators | 10 creators × 7 videos a week × 52 ÷ 12 | Calculated |
| $5.74 per 1,000 views against a $1 target | Creator cost over the views the assumptions give | Calculated |
| $1,000 base pay · $50 bonus past 100,000 views | Danilo’s plan | Proposed |
| 1,500 median views · 4% breakout (10×) · 0.5% viral (750,000) | Placeholders, replaced by the first month of posts | Assumed |
| Pay bands $300–$600, $500–$1,000, $800–$1,500 | Danilo’s plan | Proposed |
Every figure on this page is listed here with where it came from. Fact means read on the site. Assumed and Proposed are Danilo’s own numbers, to be replaced in week one. Calculated is plain arithmetic on those, with the formula shown next to it.
Month one is where it starts.
In week one I set up the claims sheet, spec the tracking with your team, brief the first creators, and launch 12 ads at $250 each, $3,000 in all. One variable per test, losers killed early, daily CAC against $71.04.
