A useful bag development brief explains who will carry the bag, what must fit inside, how it will be used, and what an acceptable finished product must do. Separate essential requirements from preferences before requesting a quotation or sample. For importers and distributors, retailers, and SME or independent brands, this creates a clearer starting point for Liora International Ltd’s Functional Carry & Textile Solutions.
Define the use and the loaded bag
Describe the primary user and situation: a commuter carrying technology, a team carrying sports equipment, or a traveller organising overnight essentials. Explain carry duration, access frequency, expected weather exposure and relevant fit needs.
List every expected item with actual dimensions and mass, including protective cases. Record the combined normal load and any maximum load requirement. A laptop’s screen size alone does not define sleeve fit; provide the device’s width, height and thickness. Specify usable internal dimensions separately from the bag’s external dimensions, with agreed measurement points and tolerances. Confirm that the opening allows the largest item to enter and that the packed bag closes without forcing it.
Make design priorities explicit
Mark each feature mandatory, preferred or optional. A mandatory padded device compartment should identify the device and required separation. An optional organiser panel can be reconsidered if it adds unwanted weight, cost or complexity.
Choose access around the task. More compartments improve separation but take space and add construction work. Additional padding may improve cushioning but increases bulk. Identify handle and strap locations, adjustment range, bottle-pocket dimensions, branding placement and colour references rather than relying on “premium” or “comfortable”.
Provide annotated reference images, sketches or a sample you are authorised to share. Explain exactly what each reference demonstrates and what should differ. Treat references as direction, not permission to reproduce protected designs.
Agree acceptance before testing
Define sample approval through measurable fit, dimensions, appearance and function. For loaded-handle or strap evaluations, agree the load, loading arrangement, duration or cycles, sample count and allowable damage before work starts. For rain exposure, specify the exposure conditions and acceptable ingress; do not substitute a fabric description for a finished-bag requirement.
Material and seam tests answer narrower questions. ASTM D5034 covers fabric breaking strength and elongation using grab procedures; it is not recommended for knitted or other high-stretch fabrics. 1 ASTM D1683/D1683M assesses sewn-seam strength in woven fabrics and explicitly does not predict actual wear performance. 2 Confirm method suitability and edition with the testing provider. These references do not establish a finished-bag load rating or claim that Liora has performed testing.
Brief checklist
- Identify the buyer, intended user, use conditions and sales markets.
- Attach the contents list, dimensions, load and packing arrangement.
- Define essential features, optional alternatives and appearance references.
- State quantities by style and colour, target cost and packaging needs.
- Share sample-review and delivery dates if known; mark unknowns clearly.
- Agree acceptance criteria, test scope and who approves revisions.
Plan sampling and delivery
Typical carry MOQ is 300 units per style per colour. Smaller pilots require feasibility review, not an assumed exception. Sampling usually takes 5–7 working days, depending on design complexity, material availability and the agreed development requirements. The applicable sampling timeline must be confirmed during brief review. Overall timing depends on the agreed specification, materials, sample revisions and delivery requirements; requested dates are not confirmed commitments.
Bring the brief to custom bag development for a scoped discussion.
References
- ASTM D5034-21, reapproved 2025 — Standard Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)
- ASTM D1683/D1683M-22 — Standard Test Method for Failure in Sewn Seams of Woven Fabrics