Why peak is harder for clothing brands
Peak season is harder for clothing brands because demand spikes across every size and color at once, gift buyers guess at fit, and the returns that follow arrive just as you want to clear seasonal stock.
A brand selling a hoodie in six sizes and four colors is not forecasting one product for Black Friday. It is forecasting twenty-four. If the size curve is off, you sell out of mediums in the first weekend while larges sit untouched. Gift purchases add another layer, since the buyer is not the wearer and exchange rates climb in January.
The brands that come through peak well treat it as a project with dates, owners and a written plan shared with their fulfillment partner, usually starting months before the first promotion goes live.
Forecast by size curve, not just by style
Peak forecasting for apparel should be done at the variant level, using your own sell-through history by size and color as the starting point.
- Pull last year's peak sales by style, size and color, and note where you stocked out.
- Adjust for new styles by borrowing the size curve of the closest existing style.
- Separate promotional hero items from the rest of the catalog, since discounts change which sizes sell.
- Share the forecast with your 3PL so it can plan labor, slotting and packaging inventory.
The forecast does not need to be perfect. It needs to be specific enough that the warehouse can slot your top variants near pack stations and order enough mailers, boxes and inserts before suppliers sell out.
Hit your inbound cutoffs
Inbound cutoffs are the dates by which peak inventory must arrive at the warehouse to be received and sellable in time. Missing them is one of the most common reasons apparel brands stock out during their biggest weeks.
Receiving slows down during peak because every brand is sending stock at once. Ask your 3PL for its recommended inbound dates and plan production and freight around them, with a buffer for port or transit delays on imported goods. Send accurate advance ship notices and carton-level packing lists by size and color so receiving goes faster.
If some inventory will arrive late, prioritize it. Core sizes of promotional styles should be received first, ahead of slow movers and next season's preview product.
Prepare gift packaging and inserts early
Gift packaging for peak should be decided, ordered and delivered to the warehouse well before the season starts. Custom boxes, tissue, holiday inserts and gift receipts all have production lead times that tighten as the holidays approach.
Decide which packaging applies to which orders: all orders, orders above a threshold, specific SKUs or orders with a gift note. Document the pack spec with photos so every pack station follows it. If you offer gift messages, confirm how they flow from the storefront to the packing slip or card and test a few orders end to end.
Keep packaging simple enough to pack quickly at volume. An elaborate unboxing that adds time to every order can slow the whole operation on your busiest days.
Plan around carrier deadlines and surcharges
Carrier deadlines and peak surcharges shape what you can promise customers in December. Major carriers publish holiday shipping cutoffs for each service level, and many apply additional charges during peak weeks.
Use those published dates to set your own order cutoffs on the storefront, with a margin for warehouse processing time. Communicate the last day for standard shipping and the last day for expedited shipping clearly in banners and checkout.
Right-sized packaging matters more than usual during peak because dimensional weight pricing can turn a light knit sweater in an oversized box into an expensive parcel. Poly mailers for soft goods and properly sized boxes for structured pieces help control cost when volume is highest.
Get ready for the January returns wave
The January returns wave is the second half of apparel peak. Gift recipients send back wrong sizes and unwanted styles, often within days of the holidays.
Agree with your 3PL in advance on how fast returns will be processed and what happens when volume spikes. Fast processing matters because a returned size medium sitting in a bin is a size medium you cannot sell in your January sale. Exchanges should be encouraged and fulfilled quickly, since they keep revenue that a refund would lose.
Review your holiday return policy too. Extended return windows for gifts are common, but they push the returns wave later and longer, so plan labor and markdown timing to match.
A simple peak timeline
A peak timeline turns the plan into dates everyone can see. Adjust it to your own calendar.
- Late summer: finalize forecasts by size and color, confirm packaging designs and order quantities.
- Early fall: confirm inbound cutoff dates with your 3PL and book freight.
- Early to mid fall: packaging and inserts delivered; promotional SKUs and bundles set up and tested.
- Weeks before Black Friday: all peak inventory received and slotted; carrier pickups confirmed.
- November and December: daily check-ins on volume, backlog and stockouts.
- January: returns and exchanges processed daily; post-peak review to capture lessons for next year.
Frequently asked questions
When should apparel brands start planning for peak season?
Apparel brands should start planning for peak season by late summer, so forecasts, packaging orders and inbound freight are locked in well before Black Friday.
How do I avoid running out of popular sizes during peak?
Forecast at the size and color level using your own sell-through history, receive core sizes first, and process returns quickly so returned units go back on sale.
Why do apparel returns spike in January?
Apparel returns spike in January because gift buyers often guess at size and style, so recipients send items back or exchange them shortly after the holidays.