Introduction to the Toolkit: translating theory into practice
Purpose
The following toolkit was created with the aim of translating the principles of longevity into concrete design tools for fashion design.
It is a tool that helps designers and students apply the theories of durability in the creation of clothing, through the physical resistance of materials, adaptability and emotional engagement, helping to promote fashion that lasts over time.
Learning outcomes
By the end of this toolkit, students will be able to:
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Verify the durability, adaptability and emotional value of garments.
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Apply design strategies that extend the duration of use.
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Integrate care, repair and storytelling into design practice.
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Prototype and evaluate garments designed for a long life cycle.
Brief summary of key concepts
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Material durability: garments that maintain their integrity and functionality over time thanks to quality fabrics, stitching and components.
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Emotional value: an emotional bond between the user and the garment that encourages care, repair and preservation over time.
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Adaptive design: designing versatile garments that adapt to different contexts, body types or seasons.
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Timeless aesthetics: choice of shapes, colours and details not linked to passing fads, to ensure a lasting perception of modernity.
Phase 1: Designing for longevity in practice
Understanding longevity in the design process
Analyse your design system
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Are my garments designed to last and integrate into a modular wardrobe, or are they designed for limited use?
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Are the components of the garment designed to be easily replaced, repaired or updated over time?
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Is it possible to create consistency or compatibility between different garments (patterns, fastenings, modules) to facilitate mix-and-matching and repair?
Objective: to assess the ability of a garment to last in physical, functional and emotional terms.
Tip: Use this tool in the early stages of design to assess design weaknesses that reduce durability and prioritise improvements before prototyping.
| Category | Evaluation criteria | Score (1–5) |
| Material integrity | Fibre strength, wear resistance, colour fastness | |
| Quality of construction | Stitch density, seam reinforcement, replaceable parts | |
| Adaptability | Range of fit, adjustable elements, modular parts | |
| Care and maintenance | Easy to clean, easy to repair | |
| Aesthetic longevity | Timeless silhouette, neutral or enduring aesthetics | |
| Emotional value | Storytelling, user identification | |
| After-sales service and circularity | Repair services, recyclability |
Checklist: “Is my design durable?”
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Quality materials, durable fibres
Stitching or reinforcements in parts subject to greater stress
Easy-to-use finishes or fastenings
Simple silhouettes, independent of trends
Easy to repair or recycle
Phase 2: Features and design elements for longevity
The longevity of a garment stems from a combination of conscious design choices: durable and repairable materials, solid construction, replaceable fastenings and easy-to-maintain designs. At the same time, elements such as timeless aesthetics, personalisation and the possibility of transformation support the emotional attachment and desire to keep the garment over time.
Objective: to design garments that will last over time, both materially and emotionally.
Tip: during the design phase, ask yourself, ‘Will this garment be repairable, modifiable or loved in five years’ time?’. If the answer is yes, you are already designing for longevity.
| Design features | Functionality | Applications |
| Adjustable belt or pleats | Grows with the wearer; flexible fit | Reduces the need to replace the garment; suitable for different stages of life; encourages personalisation. |
| Detachable elements (sleeves, collars, hoods, etc.) | Variations in functionality and style | Transform a single garment into multiple seasonal or stylistic variations (e.g. 2-in-1 jacket); extend use over time. |
| Multi-purpose garment | Can be worn in all seasons, in multiple ways or contexts | Increases versatility (e.g. dress that becomes a skirt, reversible jacket); reduces the overall number of garments needed. |
| Replaceable finishes | Buttons or zips that are easy to replace or update. | Facilitates repair and aesthetic updating; keeps the garment looking ‘new’ and current. |
| Neutral silhouette | Essential lines without excessive trendy connotations. | Makes the garment timeless and easy to match; prolongs its relevance in the wardrobe. |
| Design elements | Best practices | Applications |
| Fabric selection | Durable, easy-to-clean and non-delicate finishes | Choose durable natural fibres (organic cotton, linen, wool, hemp) or high-quality blends. |
| Construction | Reinforced stress areas, modular linings | Reinforced seams and careful internal finishes. Use of wider seam allowances to facilitate future alterations. Outerwear with replaceable linings. |
| Care labels | Clear and sustainable instructions | Digital labels (QR codes) with care and repair tutorials. |
| Closure systems | Use sturdy, replaceable components | Prefer replaceable or adjustable closures (buttons, standard zips, hooks). Avoid decorative fastenings that cannot be repaired. |
| Design for repair | Accessible seams, standardised components | Easy access to areas subject to wear and tear. Use visible or decorative seams to facilitate aesthetic repairs. Provide spare parts or repair kits. |
Phase 3: Material considerations
Choice of materials
The selection of materials is one of the most influential decisions in designing for longevity. A durable material must guarantee resistance, comfort and repairability over time, without losing quality or aesthetic value. It is also important to consider the ease of maintenance and the overall environmental impact of the material.
Objective: select materials that maintain aesthetic and functional quality over time.
Tip: evaluate not only their physical resistance, but also the user experience over time: how they age, how they are washed and how they are regenerated.
| Type of material | Functionality | Examples of use |
| Organic cotton | Natural, breathable, wash-resistant and easy to repair. | Jeans, shirts, T-shirts, casual wear and workwear. |
| Merino wool | Thermoregulating, odour-resistant and self-regenerating. | Sweaters, coats, technical and outdoor garments. |
| Linen | High tensile strength, softens with use, biodegradable. | Summer shirts, lightweight trousers. |
| Hemp | Extremely robust, antibacterial, requires little water and pesticides. | Casual and sportswear. |
| Denim (sturdy cotton) | Dense and durable structure, improves aesthetically with wear. | Jeans, jackets, skirts, bags. |
| Vegetable-tanned natural leather | Highly resistant, repairable, develops a patina over time, increasing its aesthetic value. | Jackets, footwear, bags, belts. |
| High-quality recycled polyester | Long-lasting, quick-drying, suitable for technical garments. | Technical jackets, down jackets, outdoor garments. |
Testing durability
Assess how a garment will withstand use, weather and washing, ensuring that it retains its functionality and appearance over time. Understanding the resistance of materials and constructions helps to design clothing that truly lasts.
Objective: identify the garment’s weak points and improve structural quality by testing fabrics, seams, fastenings and finishes.
Tip: incorporate small practical tests early on in the prototyping stage, such as repeated washing or manual abrasion tests, to anticipate problems and optimise material and construction choices.
| Type of test | Description | Results |
| Abrasion resistance | Check how resistant the fabric is to wear and tear (e.g. Martindale or Wyzenbeek test). | |
| Stress test | Observe the distortion of the fabric at the seams. | |
| Colour fastness | Assess the colour’s resistance to washing, light, perspiration and rubbing. | |
| Dimensional stability | Check for changes in shape or size after washing or drying. | |
| Seam strength | Tests the strength of stitches and threads during pulling or use. | |
| Pilling (formation of balls) | Simulates surface wear that creates lint or balls. |
Phase 4: Emotional longevity and narrative map
Emotional longevity stems from the emotional bond between the user and the garment. When a garment tells a personal story, it becomes more precious and is kept longer.
The narrative map helps to visualise this relationship by tracing the stages of the garment’s life: brand history, origin, production, product and future.
Objective: to encourage designers to intentionally incorporate emotional value into garments, increasing user loyalty and care.
Tip: Students can use this tool to develop brand narratives or concept boards that illustrate how emotional connection supports product usage.
| Design strategy | User interaction | Applications |
| Personalisation | It involves the user in the creative process; it strengthens the emotional bond with the garment. | Personalised embroidery, repair patches |
| Narrative communication | Creates an emotional connection through brand or product stories. | Sharing producers’ stories, process transparency |
| Transformable identity | Invite the user to modify or reinterpret the garment over time. | Modular, reversible or multi-purpose garments; designs that can be adapted to different contexts. |
| Memories and rituals | Stimulates emotional attachment and care through use and maintenance. | Repair or restyling programmes. |
| Timeless design | Reduces aesthetic obsolescence; encourages prolonged use. | Classic silhouettes, neutral palettes, seasonless or permanent garments. |
Practical activity: ‘Redesign an Old Garment’
Activity overview
Objective: To stimulate the design of garments intended for multiple life cycles, through reuse, transformation and emotional value, and to encourage a sustainable approach to design.
Time: 60-90 minutes
Materials: Brainstorming sheets or cards, images of used garments or prototypes, scissors, glue, markers (for collages or mood boards)
Step-by-step activity
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Choose a ‘lived-in’ garment: bring a used garment (yours or found) or select one from an image.
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Tell its story: Who wore it? On what occasions? What determines its wear and tear or loss of value?
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Design at least two possible transformations:
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Functional: how could it be modified to continue to be used (e.g. from shirt to top, from jeans to bag)?
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Emotional: how could you add sentimental value (e.g. personal embroidery, dyeing, family memories)?
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Visualise your ideas: create a sketch, collage or mood board that shows the garment’s new identity.
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Document: photograph each combination and note what works best in terms of comfort, aesthetics and functionality.
Food for thought
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How can design encourage attachment, repair and reuse?
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Does the garment adapt to different contexts? Is it versatile?
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Is the garment easy to wash, repair or update?
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Is the design timeless or subject to passing fads?