Growth plan for Halfdays, 5 Oct 2026
Scale spend. Hold CAC.
Halfdays sells women-first ski wear from the $45.00 T-Shirt to the $575.00 Hedy Belted Puffer. The plan: test creative fast, kill losers early, and hold the $60 target CAC while spend scales toward the $100,000 budget.
- Target CAC
- $60
- 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
Hold $60 CAC across a $45.00 tee and a $575.00 puffer
For Halfdays the number to protect is a $60 target CAC. It sits under a $100.00 ceiling built from a $125 average order, a 40% margin and one repeat order. Spend scales only while CAC holds. Week one replaces those guesses with your data.
Protect
Target CAC: $60 on a first purchase
Ceiling = average order × margin × (1 + repeat orders): $125 × 40% × (1 + 1) = $100.00. Guard line = 0.6 × $100.00 = $60.00. Across the ranges: $10.50 to $938.25.
Three moves
- Kill any ad that runs past the $60 guard line without a clear reason to keep it.
- Pair the free shipping line at $95+ with the 10% first-order offer, one hero piece per ad.
- Report daily CAC so drift shows up before the next week's spend goes out.
- Off a first order for email + SMS sign-up
- 10%
- Published
- Free shipping threshold on US orders
- $95+
- Published
- Days for easy exchanges after delivery
- 15
- Published
02 Variety
Variety: Louise, Pieper and Irene each need their own hooks
Each ad concept has to carry one product, one reason to buy and one hook, for example the Pieper Fleece at $195.00 or the Nellie Packable Puffer Jacket at $225.00. One variable per test, so a loser tells us exactly what failed.
| Reason to buy | Proof you already have | Ads (proposed) |
|---|---|---|
| Inclusive sizing | From technical fabrics to inclusive sizing | 4 |
| Olympian-founded | Olympian-founded. | 3 |
| More warmth, less weight | More warmth. Less weight. | 3 |
| Free shipping on US orders | FREE SHIPPING ON US ORDERS $95+. | 3 |
| 10% off your first order | Sign up for email + SMS to receive 10% off your first order. | 2 |
| Packs into a travel pillow | Our lightweight oversized puffer that packs into a travel pillow | 2 |
| A real customer review | “Super warm, wind resistant, and oh so chic!” | 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
Risks: $8.95 return handling and pricey puffers can stall CAC
| Disturbance | Likelihood | Impact | Owner | Gate (proposed) |
|---|---|---|---|---|
| Creators don't fit women-first technical ski wear and the hooks fall flat | Med | High | Me | Cut any creator after two videos below the hook benchmark set in week one |
| Returns carry an $8.95 handling fee, which can sour first orders | Med | Med | Both | Flag any ad whose buyers return above the benchmark set in week one |
| Free US shipping starts at $95+, so cheap tees can pull order value below my $125 guess | Med | High | Me | Pause tee-led ads if average order falls below $125 for a full week |
| Event tracking is incomplete, so CAC can't be read daily | High | High | Your team | No spend above the first-week level until daily CAC reads from tracked orders |
| Warmth and waterproof claims drift beyond the wording Halfdays already uses | Med | High | Both | Every ad line matches the claims sheet before launch, no exceptions |
| Orders take 3-5 business days to process before shipping, which slows first reviews | Med | Med | Your team | Escalate if shipping delays push support tickets above the weekly norm |
| Spend scales faster than winners are found | Med | High | Me | No weekly step up without two ads inside the $60 guard line |
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
Ceiling: $100.00 CAC on a $125 order, guard line at $60
| Line | Value | Status |
|---|---|---|
| Average order | $125 (range $20.00–$695.00) | 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 | $100.00 | Calculated Average order × margin × (1 + repeat orders) |
| Guard line for CAC | $60.00 | Calculated 0.6 × the margin per customer |
The math, with the assumed lines
Ceiling = average order × margin × (1 + repeat orders): $125 × 40% × (1 + 1) = $100.00. Guard line = 0.6 × $100.00 = $60.00. Across the ranges: $10.50 to $938.25.
Range across the assumptions: $11 to $938.
The $100.00 ceiling is arithmetic on guesses: $125 order, 40% margin, one repeat order. The $60 guard line is 0.6 of it. Week one replaces all three with Halfdays data.
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
Test ramp: $24,000 of tests over six weeks, before scale
| Week | New ads × budget / ad (proposed) | Weekly test spend | Cumulative | Creators posting | CAC target (proposed) |
|---|---|---|---|---|---|
| 1 | 12 × $250 | $3,000 | $3,000 | 0 | $60 |
| 2 | 12 × $250 | $3,000 | $6,000 | 2 | $60 |
| 3 | 12–20 × $250 | $4,000 | $10,000 | 4 | $60 |
| 4 | 12–20 × $250 | $4,000 | $14,000 | 6 | $60 |
| 5 | 20 × $250 | $5,000 | $19,000 | 8 | $60 |
| 6 | 20 × $250 | $5,000 | $24,000 | 10 | $60 |
Week 1 and week 2 run 12 ads at $250 each, $3,000 a week. Weeks 3 and 4 move to 12–20 ads, $4,000 a week. Weeks 5 and 6 run 20 ads, $5,000 a week. Total $24,000 of tests, cumulative by week six.
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
Volume: 80 concepts across jackets, bibs and layers beat 20
More concepts means more winners: 20 concepts yield 2, 80 yield 8, adding $18,000 and $72,000 a month. Hit rate and spend per winner are my guesses; Halfdays data replaces them.
| 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
Allocation: $100,000 goes first to tests, then to winners
- Creative tests on Meta: new ads and hooks
- $40,000
- 40%
- Winners scaled once they hold the $60 target
- $30,000
- 30%
- Creator pay and product seeding
- $20,000
- 20%
- Landing pages and reporting work
- $10,000
- 10%
The $100,000 is a proposal; the $24,000 test ramp sits inside the first two buckets, and winners get the rest only after the guard line holds.
The math. 40% × $100,000 = $40,000; 30% × $100,000 = $30,000; 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
Channels: Meta first, then email, the Denver flagship and search
| Channel | Open when (proposed) | Why wait |
|---|---|---|
| Meta | From week one, where every test ad runs | Paid social is my core work; the hook library starts here |
| Instagram Reels | When Meta winners also work as organic creator videos | Women who ski and hike film natively here |
| Email + SMS | From week one, since 10% off a first order already exists | Sign-up ads feed a channel Halfdays has already built |
| Denver flagship store | After the first winners, with local creators | The store at 2609 Walnut Street is a real place to film and gather |
| Search | Once creator content shows demand for the brand name | Searches for Halfdays and pieces like the Irene Pant catch intent |
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
Payback: CAC of $110 or $140 never pays back, so we stop
Payback is the real constraint. At CAC $30 a first order covers it and leaves $70.00. At $60 it pays back after repeat orders, leaving $40.00. At $110 or $140 it never does, so we stop: −$10.00 and −$40.00 left, even with a $395.00 jacket in the basket.
Cumulative margin per customer, order by order, before CAC: $50.00, $100.00.
| CAC (scenario) | First-order margin | Year-one margin | Left after CAC | Payback |
|---|---|---|---|---|
| $30 | $50.00 | $100.00 | $70.00 | First order |
| $60 | $50.00 | $100.00 | $40.00 | After repeat orders |
| $110 | $50.00 | $100.00 | −$10.00 | Never: stop |
| $140 | $50.00 | $100.00 | −$40.00 | Never: stop |
The math. CAC $30: $100.00 − $30 = $70.00 left; pays back: First order; CAC $60: $100.00 − $60 = $40.00 left; pays back: After repeat orders; CAC $110: $100.00 − $110 = −$10.00 left; pays back: Never: stop; CAC $140: $100.00 − $140 = −$40.00 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
Scope: creative, creators and reporting; not your site build
Covers
- Meta test ads, hook library and weekly experiments
- Creator recruiting, briefs and pay for the roster
- A claims sheet built from the wording on halfdays.com
- Daily CAC, weekly learnings, monthly cohort payback
Doesn’t
- Event tracking build; I spec it, your team ships it
- Site, checkout and theme changes on halfdays.com
- Fulfillment, returns and customer support
- Experience in winter apparel; I have none
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 | Daily CAC reads from tracked orders and at least two creators are live | Tracking still unreliable; hold spend at the first-week level |
| Day 30 | At least one ad holds the $60 target CAC for a full week | Nothing under the $100.00 ceiling; pause and rework hooks |
| Day 60 | Winners scale with CAC at or under $60 and the creator roster tracks the plan | CAC above $100.00 for two weeks running |
| Day 90 | Cohort payback shows repeat orders return CAC and ten creators are live | Payback never arrives at current CAC; stop or reset the offer |
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 | Range from $35.00 socks to the $695.00 Murphy Ski Suit | Hook library and tested ad concepts | 1st |
| creators | Community events with REI and Gorpgirls | A paid roster of women who ski and hike | 2nd |
| claims sheet | Own wording: Georgie Puffer is the warmest option | One sheet every ad is checked against | Week 1 |
| landing pages | 10% first-order offer and free shipping at $95+ | A page per concept and creator | 2nd |
| reporting | Email + SMS sign-up already collects first-order buyers | Daily CAC and weekly learnings | 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 |
|---|---|---|
| 10% Off a first order for email + SMS sign-up | https://www.halfdays.com/en-ar | Fact |
| $95+ Free shipping threshold on US orders | https://www.halfdays.com/en-ar | Fact |
| 15 Days for easy exchanges after delivery | https://www.halfdays.com/en-ar/pages/faq | Fact |
| Product prices $20.00–$695.00 | product prices in the site product data (60 products), read 2026-10-05 | Fact |
| $125 average order · 40% margin · 1 repeat order | Placeholders, replaced in week one | Assumed |
| $60 target CAC | 0.6 of the $100.00 margin per customer | Calculated |
| $100.00 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 40% / 30% / 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.
Week one: I turn your site wording into a claims sheet, spec the event tracking with your team, brief the first two creators and launch 12 ads at $250 each, starting with the Nellie Packable Puffer Jacket.
