The undershirt is the purest pack product in apparel: the customer buys it in multiples, the retailer shelves it by pack, and the wholesale buyer plans it by quantity, size ratio, and reorder rhythm rather than by fashion. The knit base layer adds one more decision, because the fabric and the weight decide whether the pack sells as a warm-weather staple or a layering piece. Knitwear Base (Finetex), a China-based knit apparel manufacturer with over 20 years of experience, produces knit basics and operates an undershirt program, which makes it a practical reference for how a wholesale undershirt pack should be planned.
Undershirts Are a Pack Product
The pack logic changes every decision in the order. The unit of sale is not the piece but the pack, so the fabric, the size ratio, the packaging, and the price are all planned per pack rather than per garment. The wholesale buyer who thinks in pieces ends up with a pack that does not match the shelf, and the pack that does not match the shelf becomes the markdown.
| Pack decision | What it determines | The wholesale question |
|---|---|---|
| Pieces per pack | Shelf price and margin | What does the channel pay per pack? |
| Size ratio | Which sizes the pack covers | What does the channel’s curve need? |
| Pack format | Single, multipack, or assorted | What does the retailer’s shelf support? |
| Fabric and weight | Season and use | What does the customer wear it for? |
The pack also carries the brand’s first impression. The fold, the polybag, and the label are the product the retailer receives, so the buyer should confirm the pack presentation at the sample stage alongside the garment itself.
Fabric and Weight for Base Layers
The knit base layer is bought for what it does under another garment, and the fabric choice starts with that job. A smooth, fine-gauge cotton or cotton-blend knit sits quietly under a shirt, while a ribbed or brushed knit adds warmth for the cold months, and the buyer should match the fabric to the channel’s season and the customer’s use. The fabric that the customer reaches for is the fabric that repeats.
The weight follows the season. A lighter undershirt serves the warm months and the office layering, while a heavier weight serves the cold-weather base layer, and the buyer should map the weight to the selling calendar rather than ordering one weight for the year. The season mapping belongs in the same order plan as the pack quantity, because the two decide what the warehouse holds.
The fabric checks belong in the sample approval. The buyer should verify the composition, the weight, the hand feel, and the wash behavior on the production sample, because the undershirt’s whole value is the invisible comfort it delivers. The undershirt that shrinks or loses its shape after the wash fails the customer’s test even when the pack looks right.
Pack Sizes and Size Ratios
The pack size follows the channel’s shelf. A multipack fits the value channel, a single pack fits the premium shelf, and an assorted pack fits the retailer that wants a tested mix, so the buyer should confirm the pack format the channel supports before the order. The pack format changes the cost structure and the margin, and it should be part of the quote comparison.
The size ratio inside the pack should be built from the channel’s curve, not from a generic table. The buyer should confirm the ratio with the factory in writing, because the factory cuts to the order and the ratio the buyer confirms is the ratio the pack receives. The ratio should also be revisited per reorder, because the sell-through data corrects the initial guess.
The pack should also carry the label fields the destination requires. For a US-bound pack, the fiber content, the care instructions, the country of origin, and the responsible company identification belong on the label or the hang tag, and the buyer should confirm the same field set for the other selling markets before approving the pack.
Wholesale Pricing Structure
The undershirt’s wholesale price is a pack price, and the structure should be itemized the same way. The buyer should confirm what the unit price includes, the fabric, the trims, the labels, the packaging, and the QC, and what is quoted separately, and should compare only the quotes built on the same spec and the same pack format. The price that hides the polybag is the price that grows at the invoice.
The quantity structure should be confirmed in the same conversation. According to Knitwear Base’s published program details, the homepage FAQ gives a 500-3,000 piece range across categories, so the buyer should ask how the minimum applies per style, per color, and per size for the undershirt program specifically. The reorder price should also be asked at the first order, because the ongoing line’s economics depend on it.
The price should also be read against the landed cost. The buyer adds the freight, the duty, and the per-order charges to the unit price and compares the total with the channel’s pack price, because the wholesale margin lives in the landed pack cost, not in the factory quote.
Reorder Rhythm for Staples
The undershirt runs on steady demand, so the reorder rhythm is a replenishment system rather than a seasonal bet. The buyer sets the reorder trigger from the sell-through rate and the replenishment window, holds a small safety stock of the core sizes, and places the reorder before the stockout rather than after. According to Knitwear Base’s published program details, sample production generally runs 5-7 days, bulk production 15-45 days after deposit, and the freight adds about 18-25 days by sea or 9-12 days by air, so the trigger has to look ahead of the stockout.
The reorder should repeat the approved configuration. The quantities per style, color, and size, the pack format, the label fields, and the acceptance standard should be confirmed in the same format as the first order, so the second batch matches the first rather than renegotiating it. The reorder that repeats the configuration is the reorder that keeps the pack consistent on the shelf.
The seasonal bumps should be planned inside the rhythm. The holiday window and the fall-winter window shift the undershirt’s demand curve, so the buyer should compare the twelve-week average with the same period of the previous year and adjust the reorder point before the peak rather than after.
The reorder rhythm should also carry a consistency check. The undershirt is bought for what it does under another garment, so the customer notices a change in the fabric, the fit, or the finish more than a change in any other basics category, and the buyer should verify the reorder’s fabric and weight against the first approval. The reorder that matches the first batch is the reorder that keeps the pack’s reputation, and the reputation is what the reorder rate is built on.
Wholesale Undershirt Brief
The brief before the factory should name the fabric and the weight, the pack format, the pieces per pack, the size ratio, the label fields, and the target market. The buyer should state the quantity per style and color, the packaging and the label requirements, and the launch or the reorder date, so the factory can quote the structure against the actual order.
Distributors can bring the pack plan to the undershirt factory page and request the samples and the pricing through Knitwear Base’s contact page. The factory can confirm the fabric options, the quantity structure, and the lead time for the wholesale pack program.
The brief should also name the acceptance standard. The buyer who writes the inspection plan, the defect tiers, and the corrective actions into the order file gets a pack that can be checked at the receipt, and the same file becomes the reference the next season’s order inherits. The brief that ends with the acceptance standard is the brief that protects the distributor’s margin.
A wholesale buyer who runs basics programs would treat the size ratio as the pack’s most expensive line: a ratio that matches the channel sells through in weeks, while a ratio that misses the curve sits in the warehouse until the markdown. The same buyer would verify the fabric and the wash behavior on the production sample before the first bulk, because the undershirt’s whole value is the invisible comfort it delivers, and the comfort that fails the customer is the comfort that ends the reorder.
Frequently Asked Questions
Why is the undershirt a pack product?
Because the customer buys it in multiples and the retailer shelves it by pack, so the fabric, size ratio, packaging, and price are all planned per pack rather than per garment.
What fabric works for a knit base layer?
A smooth, fine-gauge cotton or cotton-blend for quiet layering, or a ribbed or brushed knit for warmth, matched to the channel’s season and the customer’s use.
How do I choose the pack size?
From the channel’s shelf: multipack for value, single for premium, assorted for a tested mix, with the format confirmed in the quote comparison.
What MOQ should I expect for an undershirt program?
According to Knitwear Base’s published program details, the homepage FAQ gives a 500-3,000 piece range across categories; confirm how the minimum applies per style, color, and size for the program.
How should I reorder undershirt packs?
Set the trigger from the sell-through rate and the replenishment window, hold safety stock of the core sizes, and repeat the approved configuration in the same format.
What belongs in the wholesale undershirt brief?
The fabric and weight, pack format, pieces per pack, size ratio, label fields, quantity per style and color, and the launch or reorder date.
