Custom Gym Bag Tech Pack: A Quotation-Ready RFQ Checklist

1. What is the difference between a tech pack, an RFQ and an approved sample?

These documents work together, but they do different jobs.

The four records should agree. If the written specification and the approved sample differ, the order file should state which document takes precedence and record the approved exception. Do not rely on scattered chat messages as the final production instruction.

A supplier can help complete missing technical details, but the buyer remains responsible for confirming that the final brief matches the intended product, market and claim.

2. Start with the product use case, not a material name

Before selecting 600D polyester, nylon, canvas or another fabric, define what the bag must do. The use case determines the structure, load path, compartment layout and appropriate test plan. Compare common specification choices in the custom gym bag materials and hardware guide.

Include the following information in the first page of the tech pack:

• Product format: duffel, backpack, drawstring bag, tote or hybrid carry.
• Target user: gym member, athlete, team, traveler, employee or promotional recipient.
• Intended contents: shoes, clothing, towel, bottle, laptop, rackets or wet items.
• Expected packed load and how the load will be distributed.
• Carry modes: hand, shoulder, backpack or trolley attachment.
• Use conditions: daily indoor use, travel, outdoor events, wet environments or occasional promotion.
• Target market and sales channel: retail, e-commerce, fitness club, event program or corporate gift.
• Estimated order quantity by color and design.
• Target launch date, destination country and requested delivery term.

Example of a useful product brief

Develop a hybrid gym duffel for daily fitness and short-trip use. It should carry one pair of adult training shoes, a change of clothing, a sports towel, a one-liter bottle and small accessories. Required carry modes are top handle, detachable shoulder strap and stowable backpack straps. The shoe area must be physically separated from the main compartment. Final dimensions, packed-load target and all performance claims will be confirmed during sampling.

This example is useful because it describes the job of the product without pretending that the final engineering decisions have already been made.

3. Create drawings and a point-of-measure table

A bag should be shown from enough angles for a pattern maker, sample team and inspector to understand the same product.

Recommended views include:

• Front, back, left side, right side, top and base.
• Main compartment fully open.
• Each external and internal pocket open.
• Shoe or wet-item compartment shown in relation to the main volume.
• Shoulder strap, handle wrap and backpack-strap storage.
• Cross-sections where foam, board, piping or layered construction is not visible from the outside.

Number every callout. Use the same callout number in the drawing, measurement table and bill of materials.

Define finished measurements

State whether measurements apply to the finished bag when empty, closed and placed in a defined position. Capacity in liters can support comparison, but it does not replace finished external dimensions or a loading check.

Avoid a single blanket tolerance for every dimension. A small logo position may need a tighter tolerance than overall bag depth, while soft or padded constructions may require a measurement method that accounts for compression.

4. Build a bill of materials that a supplier can quote

Terms such as “premium Oxford,” “heavy-duty zipper” and “high-quality lining” are not measurable. The bill of materials should identify each component clearly enough for the supplier to propose an equivalent, disclose a substitution or price the requested construction.

Denier, GSM and thickness are not interchangeable

Denier describes yarn linear density. GSM describes mass per unit area. Thickness describes a physical dimension under a stated measurement condition. One number cannot replace the others, and none of them alone proves that a fabric is suitable for a finished gym bag.

“Water resistant” is not the same as “waterproof”

A coated shell fabric may resist light moisture while water still enters through zipper tracks, seams, needle holes or openings. When weather protection matters, define the complete construction, exposure condition, test method and pass/fail criterion. Avoid an unqualified waterproof claim unless the finished product has been tested for the intended use.

5. Specify compartments by the items they must hold

A compartment list should describe usable function, not only appearance.

Shoe compartment

Record the intended footwear dimensions, opening size, lining, ventilation, cleanability and effect on the main compartment. A shoe tunnel that looks large in an empty sample may consume too much clothing space when loaded.

Wet-item pocket

State whether the pocket is intended for temporarily separating damp clothing or is expected to contain free liquid. These are different requirements. Define lining, seam construction, zipper, drainage or ventilation and the exact claim the buyer intends to make.

Laptop or device sleeve

Provide maximum device dimensions, foam type and thickness, closure, bottom clearance and whether the sleeve must protect against the contents of adjacent compartments.

Bottle pocket

Specify bottle diameter and height, opening width, stretch or retention method, drainage and whether the bottle must remain secure while the bag is carried in each intended mode.

Accessory pockets

Identify the contents, opening direction, minimum usable dimensions and any organizer features. A flat drawing should show whether a pocket is applied to a panel or consumes internal volume.

6. Mark the construction details that carry the load

Bag failures often begin where the load changes direction: handle attachments, shoulder-strap anchors, backpack-strap roots, zipper ends, pocket corners and base seams.

The tech pack should identify:

• Seam type and seam allowance where relevant.
• Bound, turned or otherwise finished internal seams.
• Stitch type, thread requirement and visible thread color.
• Reinforcement pattern at handles, straps and high-stress corners.
• Bar-tacks, box stitches, backing patches or additional layers.
• Webbing insertion length and whether webbing continues under a panel.
• Foam, board and base-support placement.
• Requirements for trimmed threads, raw-edge control and internal appearance.

Do not choose an arbitrary stitch count or load value because it appears in another product specification. The construction, fabric, thread, seam geometry and intended load must be evaluated together.

Possible physical and laboratory checks

The buyer, supplier and laboratory should select methods that match the material and product risk. Examples include:

A standard name alone is not a test plan. Record the specimen, conditioning, method version, parameters, number of samples and acceptance criterion.

7. Match branding to the actual material and construction

Provide production artwork rather than a screenshot. Vector files are usually preferable for line art, embroidery, screen printing, patches and hardware development.

The branding section should state:

• Artwork filename and revision.
• Color reference, including Pantone or another agreed system where appropriate.
• Finished logo width and height in millimeters.
• Placement measured from fixed finished seams or edges.
• Orientation when the bag is carried in each intended mode.
• Approved method and substrate.
• Surface finish, backing, border and reverse-side appearance.
• Required strike-off or physical approval route.

Approve branding on the actual production material whenever texture, coating, heat or stretch can change the result.

8. Put labels and packaging in the specification before sampling ends

Packaging affects unit cost, carton size, labor, product presentation and inspection. Add it before the supplier confirms the final quotation.

Define:

• Brand label, care label and country-of-origin marking.
• Product identifier, style, color and size information.
• Hangtag, barcode type, barcode data and placement.
• Polybag or paper packaging dimensions and closure.
• Inserts, tissue, straps secured for packing and hardware protection.
• Quantity per inner pack and export carton.
• Color and design assortment by carton.
• Carton marks, carton dimensions and maximum gross-weight requirement.
• Destination-language and warning requirements where applicable.

The responsible brand or importer should confirm labeling and product-safety requirements for the destination market and sales channel. A supplier’s generic label template is not a substitute for an order-specific compliance review.

9. Use sampling as a controlled approval process

A physical sample should answer whether the written specification works. It should not become an undocumented replacement for the specification.

Depending on complexity, the approval route may include:

1. Material swatches, color approvals or logo strike-offs.
2. Initial development sample for shape and function.
3. Revised sample with a consolidated correction list.
4. Pre-production sample made from confirmed materials and components.
5. Packing sample or final pack-out approval.

Give every sample a style number, revision and date. Keep one consolidated change log.

When a component changes after approval, record the change and decide whether the risk requires another sample, strike-off or targeted test.

10. Convert the specification into an inspection plan

Identify the characteristics that are critical to quality for the specific bag. Typical checks include:

• Product identity, color and assortment.
• Finished dimensions and logo placement.
• Shell, lining, webbing, zippers, hardware and reinforcement.
• Pocket layout and usable compartment function.
• Open seams, skipped stitches, seam damage and loose components.
• Zipper operation, slider direction and end treatment.
• Strap adjustment, slippage and attachment.
• Print, embroidery, patches and labels.
• Odor, contamination, sharp edges and foreign material.
• Unit packaging, barcode, carton quantity and marks.

Defect classification must be agreed before inspection

A foreseeable safety issue, prohibited material or dangerous sharp component may be classified as critical. A non-functioning zipper, detached strap, wrong material, incorrect logo, open load-bearing seam or dimension outside an agreed functional tolerance may be major. A small cosmetic issue that does not affect function or saleability may be minor.

These are examples only. The final defect list and classification must match the product, market and buyer requirements.

Use AQL sampling correctly

ISO 2859-1:2026 defines acceptance sampling plans for inspection by attributes. The selected lot, inspection level, sampling plan and acceptance quality limits should be stated in the purchase and inspection terms. AQL sampling does not guarantee that every unit is defect-free, and it does not replace product-safety evaluation or laboratory testing.

Do not copy a sample-size table from an unrelated order. Use the applicable standard or a qualified inspection provider to calculate the plan for the actual lot and agreed settings.

11. Copy-and-paste custom gym bag RFQ template

Use the following template in an email, spreadsheet or sourcing form. Replace every bracketed item.

CUSTOM GYM BAG RFQ

1. BUYER AND PROJECT
Company:
Contact:
Project or style name:
Target market(s):
Sales channel:
Intended user and use case:
Target launch or delivery date:

2. COMMERCIAL QUANTITY
Initial order quantity:
Quantity by color/design:
Estimated repeat quantity, if known:
Ship-to city/country:
Requested Incoterm:
Quote freight separately? Yes / No

3. PRODUCT FORMAT
Bag type:
Carry modes:
Intended packed items:
Target packed load:
Reference images or existing sample available:

4. FINISHED DIMENSIONS
Overall height:
Overall width:
Overall depth:
Target capacity, if relevant:
Measurement method:
Dimension tolerances:

5. COMPARTMENTS
Main compartment:
Shoe compartment:
Wet-item pocket:
Laptop/device sleeve:
Bottle pocket:
Other pockets or organizers:

6. MATERIALS
Outer shell:
Lining:
Foam/padding:
Base support:
Mesh:
Webbing:
Binding:
Thread:
Required color references:
Recycled-content request and required evidence, if applicable:

7. ZIPPERS AND HARDWARE
Zipper size/type:
Slider and puller:
Buckles/hooks:
Snaps/feet/other hardware:
Hardware color and finish:
Custom molds required:

8. BRANDING
Artwork filename/revision:
Logo method:
Finished logo size:
Measured placement:
Logo colors:
Other labels or branded components:

9. LABELS AND PACKAGING
Brand label:
Care/origin label:
Hangtag:
Barcode:
Unit packaging:
Units per carton:
Carton marks:
Destination-language or warning requirements:

10. SAMPLE AND APPROVAL
Requested sample route:
Required material or logo approvals:
Approved-sample retention:
Target sample review date:

11. TESTING AND INSPECTION
Critical-to-quality points:
Required laboratory tests:
Required test methods and pass/fail criteria:
Inspection stage:
Sampling plan/AQL settings:
Required inspection report and shipment-release evidence:

12. QUOTATION BREAKDOWN
Unit price:
Sample charge:
Mold/setup charges:
Packaging charge:
Testing charge:
Inspection charge:
Estimated production lead time after approval:
Quotation validity:
Assumptions and exclusions:

12. How to compare quotations fairly

A low unit price may reflect a different material, zipper, reinforcement, logo process, packaging scope or delivery term. Normalize the following items before choosing a supplier:

Ask every supplier to list assumptions and proposed substitutions. A quotation is easier to audit when every important component is named rather than hidden inside one unit price.

Common tech pack mistakes that create delays or price disputes

• Sending only reference photos without measurable dimensions.
• Using capacity in liters as the only size requirement.
• Requesting “premium” material without construction or performance details.
• Forgetting the lining, foam, board, binding, thread and internal finish.
• Adding a shoe or wet compartment without defining the item it must hold.
• Approving a logo on a digital mockup but not on the actual production material.
• Leaving labels, barcode and packaging until production is nearly complete.
• Naming a test standard without method parameters or pass/fail criteria.
• Changing components through chat messages without updating the revision log.
• Treating a general factory or material certificate as proof for every order.

Primary references for test and inspection planning

• ISO 2859-1:2026, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection: https://www.iso.org/standard/85464.html
• ISO 13935-2:2026, Textiles — Seam tensile properties of fabrics and made-up textile articles — Part 2: Determination of maximum force to seam rupture using the grab method: https://www.iso.org/standard/88344.html
• ISO 13934-1:2013, Textiles — Tensile properties of fabrics — Part 1: Determination of maximum force and elongation at maximum force using the strip method: https://www.iso.org/standard/60676.html
• ISO 12947-2:2016, Textiles — Determination of the abrasion resistance of fabrics by the Martindale method — Part 2: Determination of specimen breakdown: https://www.iso.org/standard/61058.html

Scope note: These standards are examples for selecting an order-specific test or sampling plan. They are not automatic requirements for every bag. Confirm the current method, applicability, specimen, parameters and acceptance criteria with the responsible buyer, laboratory or inspection provider.