Ecommerce subject lines carry a product, a price, or a reason to look now. The strongest ones name a category the shopper already browsed and leave the persuasion to the product itself. Filter by technique below, copy the lines that match your next send, then score your own draft in the tester.
A discount in every subject line trains shoppers to wait for the next one. Rotate offer lines with product, story, and guidance lines.
Run finalists through the subject line tester before you load them into a campaign.
technique
character length
Showing 14 of 14 ecommerce subject lines
"Your size is back in stock"
Specific wording in "your size is back in stock" tells the reader exactly what changed before open. FOMO is the lever here; waiting feels like losing a real chance. It stays specific and avoids all-caps pressure, so it's assertive without looking like spam bait.
Inspired by Allbirds, Back in stock alert (2024) original source.
"A better deal just dropped in your cart"
The curiosity gap in "a better deal just dropped in" withholds one detail, which creates an open loop. Curiosity is the lever here; the reader expects the missing detail right away. It keeps hype low, so it's easy to trust and quick to scan in a crowded inbox.
Inspired by Glossier, Cart recovery email (2024) original source.
"Weekend picks under $50"
The number in "weekend picks under $50" sets a clear expectation and makes the promise measurable. Delight is the lever here; the tone feels rewarding instead of pushy. It keeps hype low, so it's easy to trust and quick to scan in a crowded inbox.
Inspired by Allbirds, Weekend picks campaign (2025) original source.
"You viewed it, now it's 15% off"
The number in "you viewed it now it's 15%" sets a clear expectation and makes the promise measurable. FOMO is the lever here; waiting feels like losing a real chance. It stays specific and avoids all-caps pressure, so it's assertive without looking like spam bait.
Inspired by Patagonia, Retargeting offer (2025) original source.
"New arrivals for rainy mornings"
Specific wording in "new arrivals for rainy mornings" tells the reader exactly what changed before open. Delight is the lever here; the tone feels rewarding instead of pushy. It keeps hype low, so it's easy to trust and quick to scan in a crowded inbox.
Inspired by Allbirds, New arrivals launch (2024) original source.
"Last day for free shipping"
Brevity in "last day for free shipping" keeps the core idea visible on small screens. Urgency is the lever here; the time cue pushes faster action. It stays specific and avoids all-caps pressure, so it's assertive without looking like spam bait.
Inspired by Patagonia, Shipping deadline campaign (2024) original source.
"What shoppers bought with your pick"
The curiosity gap in "what shoppers bought with your pick" withholds one detail, which creates an open loop. Trust is the lever here; plain language makes the sender feel dependable. It keeps hype low, so it's easy to trust and quick to scan in a crowded inbox.
"Two colors, one decision"
Brevity in "two colors one decision" keeps the core idea visible on small screens. Relatability is the lever here; the phrasing sounds like a familiar inbox moment. It keeps hype low, so it's easy to trust and quick to scan in a crowded inbox.
"Your order is packed and moving"
Specific wording in "your order is packed and moving" tells the reader exactly what changed before open. Trust is the lever here; plain language makes the sender feel dependable. It keeps hype low, so it's easy to trust and quick to scan in a crowded inbox.
Inspired by DoorDash, Order tracking email (2025) original source.
"Your first look at our bestsellers"
Bestsellers are the lowest-risk entry point for someone who does not know the catalog yet, and the line says so plainly. "First look" adds a small sense of privilege without promising a discount.
Inspired by Mailneo, Introduction email subject lines guide (2026).
"Meet the makers behind our products"
It sells the story rather than the product, which suits brands whose margin depends on provenance. Because there is no offer attached, it also gives a promotional calendar a useful non-selling send.
Inspired by Mailneo, Introduction email subject lines guide (2026).
"Your guide to choosing the right size"
Sizing uncertainty drives both hesitation and returns, so a guide is useful before and after purchase. Positioning it as help rather than promotion makes the email welcome in an early lifecycle slot.
Inspired by Mailneo, Introduction email subject lines guide (2026).
"Your skincare routine starts here"
It sells the outcome, a routine, rather than a single product, which raises the value of the first click. The line stays short enough to pair with a preheader that names the actual starting products.
Inspired by Mailneo, Introduction email subject lines guide (2026).
"Winter coats are 35% off today"
Category, discount, and duration appear in six words, so a shopper can decide without opening. Naming one category instead of the whole store makes the message easy to segment and easy to trust.
Inspired by Mailneo, Black Friday subject lines guide (2026).
Copy a line, swap in your product, audience, and deadline, then score the edited version. The tester checks length, wording, and spam risk so you can compare your draft against the examples on this page before the send goes out.
Open the subject line testerAbandoned cart subject lines
14 scored examples
Holiday subject lines
15 scored examples
Social proof subject lines
13 scored examples
Or go back to the full subject line library for the principles and the pre-send checklist.