The cheapest way to ship clothes, from one shirt to a full box

What is the cheapest way to ship clothes?

For most clothing orders, the cheapest way to ship clothes is a poly mailer sent by USPS Ground Advantage, paid with a label you buy online. Clothes are soft, light and fold flat, which suits a service that charges by weight and distance and lets you use your own packaging and measure it to make sure it meets the size standards.

Buying the label online matters as much as the packaging. A Post Office counter charges retail prices, which start at $7.90. USPS says to ship online with Click-N-Ship and get lower Commercial Rates. Example: a light shirt parcel going to zone 5 costs $7.69 with an online label, against $10.95 at the counter once it reaches the third ounce tier.

Three things then decide the price: how much the parcel weighs, how far it goes, and whether its size pushes it into dimensional weight or a nonstandard fee. The sections below take each one in turn.

Prices are from the USPS Notice 123 price list effective July 12, 2026. Zone 5 is a mid-distance example; nearer zones cost less and farther ones more. Commercial prices under a pound are the same in every ounce tier.

Poly mailer vs box: how to package clothes for shipping

A poly mailer weighs very little and adds almost nothing to the parcel's size, so it keeps clothes in the lowest weight tier and away from dimensional weight. A box adds its own weight and air, and only earns its place when the item needs to hold its shape.

Use a mailer for t-shirts, knitwear, leggings, swimwear and other items that can be folded without harm. Use a box for structured pieces such as tailored jackets, hats, items with hardware, or orders where the folded clothes would make a soft, lumpy parcel.

A soft parcel can cost more if it rolls or shifts. USPS lists other mailable items (including polybags) with contents that may shift, or cause the parcel to roll as a nonstandard characteristic, and the price list adds $4.50 to Ground Advantage parcels with these characteristics. Fold clothes into a flat, even rectangle and press the air out before sealing, so the mailer stays flat.

• Fold the item flat and put it in a clear bag first, so rain cannot reach the fabric if the mailer tears.
• Choose the smallest mailer the folded item fits without stretching the seams.
• Press out the air, seal the strip fully, and check the parcel lies flat on a table.
• Weigh the parcel with the packaging on, since the label price uses the packed weight.

How much does it cost to ship clothes? Weight tiers decide it

USPS Ground Advantage prices parcels under a pound in tiers of 4 oz, 8 oz, 12 oz, and 15.999 oz. The price rounds up to the next tier: if your package weighs 4.2 oz, you’ll pay the 8-oz price. Above that, parcels are charged by the pound up to 70 lbs (rounded up), and if your package weighs 8.3 lb, you will pay the 9-lb price.

This is why a few ounces matter for apparel. At retail prices the jump between ounce tiers is real: in the zone 5 example, the second tier costs $8.60 and the third $10.95. At commercial prices every tier under a pound costs the same $7.69 in that zone, so the line that matters online is the full pound, where the price moves to the pound table.

Example: a hoodie that weighs one pound and two ounces once packed is billed at the two-pound price, $9.95 online in zone 5. Trimming a heavy cardboard insert or a thick tissue wrap can bring a parcel back under a whole-pound line.

When size costs more than weight

Most clothing parcels are small enough that size does not affect the price. Dimensional weight starts only when a parcel is larger than 1 cubic foot (1,728 cubic inches). USPS then multiplies length by width by height and divides by 139, and if that figure is more than the real weight, you’ll need to pay the DIM weight price.

This catches bulky but light orders: a puffer jacket or a box of sweaters packed loosely. Compress the clothes, use a box that fits the contents, and the parcel is billed on its weight instead.

Ground Advantage also has a size limit of 130 inches in combined length and girth, which no normal clothing order reaches.

Cubic pricing for small, dense clothing parcels

USPS also offers Ground Advantage Cubic, where prices are based on the package size and distance it’s going instead of its weight. Cubic prices sit in the commercial part of the USPS price list, and they pay off when a small parcel is heavy for its size, such as a pair of jeans or a folded sweater packed tight.

In the zone 5 example, the smallest cubic tier costs $8.49 and the next one $9.37, and the tiers rise to 1.00 cubic foot. Example: a five-pound parcel of denim packed into the second cubic tier costs $9.37 by cubic price, against $13.48 by weight. A light shirt stays cheaper on the ounce price of $7.69.

If your label tool shows both a weight price and a cubic price for a parcel, check which one it picked and choose the lower one before you buy.

Flat Rate envelopes and boxes for clothes

Priority Mail Flat Rate products ship packages up to 70 lbs to any state at the same price. Weight and distance stop mattering, so they win only when the parcel is heavy and going far.

USPS lists clothing as a typical use for the Padded Flat Rate Envelope, which measures 12 1/2″ x 9 1/2″ and costs $11.99 online or $14.00 at a Post Office. The Medium Flat Rate Box costs $21.17 online or $24.80 at the counter.

For a single light garment, Ground Advantage in your own mailer is cheaper. For a heavy pair of boots or several pieces going across the country, price the Flat Rate option against the weight price before you buy. Priority Mail prices start at $11.00 at a Post Office.

UPS options for small apparel brands

UPS has a pricing option that fits clothing well: UPS Simple Rate. Its rate is determined by package size and service option instead of weight, and it is designed for the shipper’s own box or poly mailer. Shippers do not need to open an account or enter into a contract to use it.

Simple Rate sizes are measured in cubic inches. The Extra Small size covers 1-100 cubic inches and costs $13.00 by UPS Ground between the 48 contiguous states. The Small size covers 101-250 cubic inches and costs $16.00. Fuel surcharges do not apply to UPS Simple Rate shipments.

Standard UPS Ground bills on actual weight rounded up to the next whole pound, plus a fuel surcharge: the UPS rate guide says Rates do not include a fuel surcharge. For a light shirt in a mailer, USPS Ground Advantage at $7.69 in the zone 5 example is cheaper than any Simple Rate size. UPS starts to compete on heavy, compact parcels, such as a dense box of denim, where a flat size price beats a weight price.

Compare the two carriers in the same label tool for the order sizes you ship most often, and keep the cheaper one as your default.

How to ship clothes, step by step

These steps cover a typical order sent in the US with a label bought online.

1. Fold and bag the item

   Fold the clothes flat, put them in a clear bag, and add a packing slip or care card if you use one.

2. Pick the packaging

   Use a poly mailer for soft items and a box for structured pieces. Pick the smallest size that fits without strain.

3. Weigh and measure

   Weigh the sealed parcel on a scale. Measure a box if it might be larger than 1 cubic foot (1,728 cubic inches).

4. Buy the label online

   Buy the label online through Click-N-Ship or your label tool. USPS gives lower Commercial Rates online. Compare the weight price, the cubic price and Flat Rate where they apply.

5. Hand it over

   Drop the parcel at a Post Office or carrier location, or book a pickup. Ground Advantage includes $100 of insurance and expected delivery in 2–5 days.

Where Nation fits

Questions about shipping clothes