Returning an online clothing order at no charge is a service with a real cost attached. That cost is recovered through pricing, spread across everyone who buys.
A return costs more than the outbound trip
Shipping a parcel back is only the first expense. The garment must then be received, inspected, steamed or cleaned, repackaged and returned to available stock.
Each of those steps requires handling in a warehouse designed for outbound flow, which is why processing a return generally costs more per item than sending one out.
By the time an item is resellable, a meaningful share of its margin has already been consumed.
Fit uncertainty drives the volume
Clothing cannot be tried on before an online purchase, so shoppers order multiple sizes intending to keep one. The practice is rational for the buyer and expensive for the seller.
Return rates for apparel run far above those for most other online categories for this reason alone, independent of product quality.
Retailers respond with detailed measurements, fit guides and reviews, all of which exist to reduce return volume rather than to improve description for its own sake.
The cost is recovered in the ticket price
Because returns are predictable in aggregate, they are budgeted like any other operating cost and built into the margin a retailer targets on each garment.
A customer who never returns anything therefore subsidises one who orders three sizes routinely. The policy is free at the point of use, not free overall.
This is why online-only apparel sellers with liberal policies often price slightly above sellers where fit can be checked in a store.
Not everything returns to full-price stock
A garment that comes back marked, creased beyond recovery, or after the season has turned may be worth less than the cost of processing it again.
Such items are routed to clearance, sold to liquidators in bulk, or in some cases donated, which is why returned goods frequently surface at outlet prices.
The economics explain why some retailers now let customers keep low-value items rather than pay to have them shipped back.
Where policies are tightening
Several retailers have introduced return fees, shortened windows or flagged accounts with unusual return patterns, all of which shift the cost toward the customers generating it.
Others hold the free policy and treat it as a competitive feature, accepting the expense as the price of winning the order.
Reading the policy before ordering multiple sizes has become a genuine part of comparing two sellers, because the terms now differ considerably.