TSA Quart Size Bag Dimensions: The Complete 2026 Guide

By the Camytonc team · 2026-08-20

TSA 3-1-1 liquids rule summarized

According to the Transportation Security Administration (TSA), the 3-1-1 rule applies to liquids, gels, aerosols, creams, and pastes in carry-on bags. The rule has three main parts.

• 3.4 ounces or 100 milliliters maximum per container.
• 1 clear quart-sized resealable bag per passenger.
• 1 bag per passenger at the security checkpoint.

TSA 3-1-1 reminder: liquids, gels, aerosols, creams, and pastes must be in containers of 3.4 ounces or less, inside one clear quart-sized resealable bag per passenger.

TSA describes the required bag by volume, not by exact dimensions. This is why the phrase tsa quart size bag dimensions usually refers to common retail bag sizing, not a mandatory inch measurement published by TSA.

What does quart size mean in real volume?

A US liquid quart equals 32 fluid ounces, approximately 0.95 liters. A disposable quart size bag commonly has a footprint of approximately 7 x 8 inches. Some brands sell slightly different footprints, such as 7 x 7.5 inches or 7.5 x 8 inches. Screening officers evaluate whether the bag is clear, resealable, and approximately quart-sized.

Because TSA guidance describes the bag by volume, a clear resealable bag with a slightly different footprint can still fit the 3-1-1 rule if the practical fill volume remains about one quart. A very large clear bag, such as a gallon bag, may prompt additional screening because it exceeds the intended one quart volume.

Quart size bag dimensions vs common clear bags

The table below compares common clear resealable bag types. The dimensions are approximate common retail conventions, not TSA specifications.

Travelers should treat 7 x 8 inches as a conventional quart bag footprint. The official TSA requirement is one clear quart-sized resealable bag per passenger, not one specific inch dimension.

How reusable 0.3 mm PVC bags compare to disposable zip bags

Disposable zip bags are thin and flexible. A reusable transparent PVC bag with reinforced boning keeps its shape and protects toiletry containers. Camytonc offers the CB-4627 TSA Approved Quart Size Toiletry Bag. Note that TSA Approved is the product line name; TSA itself does not approve or certify specific bag models.

CB-4627 uses Safe PVC plastic 0.3 mm, a metal zipper, heat-sealed construction, and reinforced boning. The product weighs approximately 0.7 lbs.

The medium CB-4627 is the safer option for travelers who want a reusable clear quart bag. The large CB-4627 may be useful for general cosmetic organization, but it should not be listed as a TSA quart size bag. See the CB-4627 product page for production details and clear PVC makeup bags for related styles.

International carry-on liquid bag equivalents

European Union and United Kingdom airport security rules generally require liquids, aerosols, and gels to be in containers of 100 ml or less. Passengers carry these containers in a transparent resealable plastic bag of about one litre capacity. This is general guidance from EU and UK regulators. Travelers should check the national authority or airport rules before departure because bag dimensions and enforcement can vary.

FAQ: TSA quart size bag dimensions and exceptions

Are solid cosmetics subject to the quart bag rule?

According to TSA, solid cosmetics such as lipstick, powder, and stick deodorant are not liquid, gel, or aerosol items. They do not need to be placed in the quart bag. Liquids, gels, aerosols, creams, and pastes go inside the clear quart-sized bag.

What about medications?

TSA allows medically necessary liquids and medications in reasonable quantities. These items are not required to fit inside the quart bag, but passengers should declare them to screening officers before the checkpoint process begins.

Does contact lens solution count?

TSA treats contact lens solution as a medically necessary liquid. Passengers may carry reasonable quantities exceeding 3.4 ounces or 100 ml. Declare contact lens solution separately at the checkpoint.

Can a reusable bag have different dimensions and still pass?

Yes, because TSA guidance describes the bag by volume. A clear resealable bag with a quart volume and a slightly different footprint, such as 7.5 x 5.9 inches, generally fits the rule. An oversized clear bag above quart volume can prompt additional screening.

What dimensions should sellers list for the CB-4627?

List the medium as 7.5 x 5.9 x 2.2 inches, with expanded dimensions of 7.5 x 2.2 x 5.5 inches. Do not list the large 9.6 x 3.1 x 6.5 inch size as a TSA quart size bag. For more background, see the makeup bag materials guide.

Private label sourcing for quart size clear bags

For brands that need clear toiletry bags for travel retail, Camytonc manufactures at its BSCI certified factory in Yiwu, Zhejiang, China. The factory operates 30,000+ square meters, 500+ workers, 100+ designers, and 50+ automated production lines. Monthly output is 150,000 units, and warehouse capacity is 3,000,000+ items.

Camytonc holds five listed certifications: amfori BSCI, ISO 9001, SGS, TUV, and GRS. Materials include nylon, polyester, canvas, and rPET. Waterproofing options include PU/PVC coating at 3000 mm+, TPU lamination at 10,000 mm+, and heat-welded seams.

Production facts for cosmetic bag orders:

• MOQ for cosmetic bags: 500 pcs.
• Pantone single-color matching from 200 pcs, Delta E 2.0 or better.
• Paid samples ready in 1 to 10 days, revision in 2 to 3 days.
• Full custom production in 7 to 15 days.
• Logo on stocked styles in 3 to 7 days.
• Ready-to-ship best sellers ship in 24 to 48 hours, mixed styles and colors accepted.
• Express DHL, FedEx, UPS, or TNT in 5 to 7 working days; sea freight in 40 to 45 days.
• After-sales response within 24 hours; replacements, credits, and technical support available.
• CB-4627 production lead time: 1 to 200 pcs in 25 days, 201 to 500 pcs in 30 days.

Logo processes and MOQs

Buyers can review custom production options at custom cosmetic pouch, explore bulk ranges at makeup pouches wholesale, or request volume supply at bulk makeup bags. For the full catalog, visit products or contact the Camytonc team at contact.