A 2025 Nielsen IQ Global Consumer Study found that 73 percent of global consumers say they would definitely or probably change their consumption habits to reduce environmental impact. The same research found that products making ESG (Environmental, Social, Governance) related claims grew 28 percent faster than products without such claims over the preceding five years. Patagonia, which introduced its “Don’t Buy This Jacket” campaign in 2011 and built an entire brand identity around reducing unnecessary consumption, grew its revenue from approximately 415 million US dollars in 2011 to over 1.5 billion US dollars in 2024. Sustainability and commercial performance are not mutually exclusive in e-commerce. For a growing number of brands, they are increasingly aligned.
The e-commerce sector carries a specific sustainability footprint that consumer brands managing physical stores do not: last-mile delivery, packaging waste at scale, and product return rates (e-commerce returns average 20 to 30 percent versus 8 to 10 percent for physical retail) create environmental impacts that are becoming regulatory, reputational, and operational concerns simultaneously.
The Packaging Problem and What Brands Are Doing
Packaging represents the most visible sustainability touchpoint in e-commerce because it arrives in the customer’s hands and must be disposed of. E-commerce packaging has historically been optimised for product protection rather than material efficiency, producing the well-documented problem of small products in large boxes with excessive void fill.
Brands approaching packaging sustainability effectively in 2026 are taking three approaches:
Right-sizing is the most impactful change for brands with high order volumes. L’Oreal’s e-commerce division reported a 38 percent reduction in packaging weight after implementing right-sized box selection algorithms that match box size to order contents. Amazon’s Ship in Own Container programme (SIOC) eliminates the outer e-commerce box for products whose own packaging is sufficiently protective.
Material reduction and recyclability shifts packaging specification from virgin plastic to recycled content, from mixed-material laminates to monomaterials that can be recycled in standard consumer streams, and from plastic void fill to paper-based alternatives. LUSH Cosmetics ships approximately 40 percent of its products “naked” with no packaging. Allbirds uses Forest Stewardship Council certified cardboard for all shoe boxes, with the box serving as its own mailer.
Reusable packaging programmes are more operationally complex but increasingly viable at scale. Loop Industries (which operates a branded reusable packaging system for CPG brands) and Returnity (which provides reusable mailers for e-commerce brands) offer implementations where packaging is collected from customers and re-entered into the supply chain. Patagonia’s worn-wear programme uses reusable packaging for its repair and resale service.
Carbon-Neutral and Low-Carbon Shipping
Delivery is the largest single component of e-commerce’s direct carbon footprint. A 2023 analysis by consultancy Systemiq found that last-mile delivery accounted for approximately 30 percent of e-commerce’s total carbon footprint, with expedited shipping generating significantly higher per-parcel emissions than standard delivery due to reduced vehicle load consolidation.
Brands managing delivery carbon are addressing it through a combination of: offering standard delivery as the default (with expedited as an opt-in rather than opt-out), using carbon-offsetting programmes for shipping emissions (Shopify’s Planet app, for example, routes a fraction of revenue to carbon removal projects and is used by over 70,000 merchants), transitioning last-mile delivery to electric vehicles through partnerships with logistics providers, and enabling click-and-collect to consolidate individual home delivery trips.
The consumer behaviour dimension of sustainable shipping matters significantly: research by MIT’s Real Estate Innovation Lab found that 60 percent of consumers prefer sustainable delivery when offered, but that the preference drops substantially when sustainable delivery means longer wait times. The implication for e-commerce brands is that positioning standard delivery as sustainable (rather than creating a premium “eco-delivery” option) generates higher sustainable delivery uptake without requiring consumers to trade off speed explicitly.
Reducing Returns: The Underaddressed Sustainability Lever
E-commerce return rates of 20 to 30 percent represent a sustainability problem that is often underemphasised relative to packaging and shipping. Returned products in most categories cannot be restocked as new: they require inspection, cleaning, repackaging, or liquidation through discount channels. Research by Optoro found that approximately 25 percent of returned e-commerce products end up in landfill after the reverse logistics and restocking economics become unfavourable.
Brands reducing returns effectively are addressing the primary return causes rather than making returns more difficult (which reduces conversion and customer trust). The primary return causes in apparel and footwear (the highest-return categories) are size and fit uncertainty. Brands deploying solutions here include:
Detailed size guides with actual garment measurements (not just S/M/L designations) reduce size-related returns. ASOS’s size chart showing actual garment measurements rather than standard sizing reduced size-exchange returns by 17 percent in its 2024 pilot. Fit technology (virtual try-on using augmented reality, AI-powered size recommendation engines) has matured significantly. Zalando and ASOS both report return rate reductions of 10 to 20 percent for product categories where AI size recommendation is available and used.
Virtual try-on technology for apparel, eyewear, and accessories has moved from novelty to operational tool at several major retailers. Warby Parker’s virtual try-on feature (AR fitting of glasses frames using the front camera) is credited with a 60 percent reduction in returns in its online channel relative to comparable products without the feature.
The Commercial Case: Sustainability as Competitive Advantage
The commercial argument for sustainable e-commerce practices is increasingly supported by consumer willingness-to-pay data. Nielsen IQ’s 2025 study found that 66 percent of global consumers (and 73 percent of millennials) say they are willing to pay a premium for sustainable products. Research by Sustainable Brands found that brands perceived as genuinely sustainable (rather than greenwashing) generate higher Net Promoter Scores and lower customer acquisition costs from word-of-mouth referrals.
The cost structure argument is also increasingly favourable: right-sized packaging reduces material cost and shipping dimensional weight charges. Returns reduction directly improves gross margin. Carbon offset programmes, while adding cost, are typically fractions of a percent of revenue. The operational sustainability improvements that most benefit the environment are also frequently the same improvements that reduce waste and cost in the supply chain.
| Sustainability Action | Environmental Impact | Commercial Impact | Difficulty |
|---|---|---|---|
| Right-size packaging | High (material reduction) | Cost saving (materials + DIM weight) | Medium |
| Recycled/recyclable materials | Medium | Minimal cost difference at scale | Low |
| Carbon neutral shipping offsets | Medium | Low cost (<0.5% revenue typically) | Low |
| EV last-mile delivery | High | Carrier partnership dependent | Medium |
| Return rate reduction (size tech) | High (avoids reverse logistics) | Gross margin improvement | High |
| Reusable packaging programme | High | Cost neutral to positive at scale | High |
