Luggage & Travel Goods

Material Composition Assumptions

The default bill of materials for a representative hard-shell carry-on suitcase (approximately 3.5 kg, 55 cm × 40 cm × 20 cm, compliant with major airline cabin allowances) includes:

• Polycarbonate (PC) or ABS shell: The defining material of modern hard-shell luggage. Two injection-moulded or thermoformed half-shells, approximately 1.0–1.5 kg total. PC is the premium choice (~5.5–7.5 kgCO2e/kg) offering higher impact resistance and lighter weight; ABS (acrylonitrile butadiene styrene) is the mid-range option (~3.5–5.0 kgCO2e/kg). Many products use a PC/ABS blend (70/30 or 80/20) to balance cost and performance.
• Aluminum frame, extrusion rails, and corner pieces: Structural perimeter framing and the telescoping handle mechanism, approximately 0.5–0.8 kg total. Aluminum 6063 alloy extrusion is standard, carrying approximately 8–10 kgCO2e/kg for primary material before extrusion and finishing. The telescoping handle involves multiple precision-formed aluminum tubes and polypropylene handle grip.
• Nylon lining fabric: Interior lining, pockets, and dividers approximately 0.3–0.5 kg of woven nylon or polyester at ~5–8 kgCO2e/kg (nylon) or ~3.5–5.0 kgCO2e/kg (polyester).
• Wheels and casters: Typically four spinner wheels, each comprising a polypropylene or nylon housing, a steel ball-bearing race, and a polyurethane or rubber tread, approximately 0.3–0.4 kg total. Spinner wheel systems are more complex than two-wheel trolley designs and involve more components.
• Zipper system: YKK or equivalent nylon coil zipper running the full perimeter, approximately 0.05–0.1 kg of nylon coil, fabric tape, and zinc alloy slider.
• TSA combination lock or integrated locking system: Approximately 0.05–0.1 kg of zinc alloy or ABS housing, steel shackle, and small spring mechanism.
• Packing restraints, compression straps: Approximately 0.05–0.1 kg of polypropylene webbing and plastic buckles.
• Packaging: Polypropylene dust bag and printed cardboard box, approximately 0.3–0.5 kg combined.

The CCI score of 28 kgCO2e applies to the reference hard-shell carry-on. Checked bags are typically 25–35% heavier, scaling the score proportionally. Soft-shell luggage replaces the PC/ABS shell with a polyester or ballistic nylon fabric body (~600D–1680D denier), reducing material emissions per kilogram but adding complexity through reinforced panels and frame inserts.

Why the Score Is What It Is

Luggage has a moderate-to-high per-kg emission intensity (8.0 kgCO2e/kg) driven by the combination of engineered plastics and aluminum — two material families that both carry substantial upstream production emissions. Unlike simpler textile goods that are predominantly one material type, a suitcase is genuinely multi-material, requiring the full supply chain footprint of four or five distinct material streams.

The polycarbonate or PC/ABS shell is the largest contributor because the bisphenol-A (BPA) polycarbonate production route involves energy-intensive monomer synthesis and polymerisation, with the resulting resin then requiring thermoforming or injection moulding — an additional energy step that adds approximately 0.3–0.8 kgCO2e/kg relative to raw resin. Thermoforming hard shell halves from extruded PC/ABS sheet is a batch process performed at dedicated facilities, predominantly in China, under grid conditions that amplify Scope 2 contributions.

The aluminum telescoping handle system is often underestimated as an emission hotspot. The handle on a premium spinner suitcase may involve four nested aluminum tubes, complex locking mechanisms, and a moulded grip, amounting to 0.4–0.6 kg of aluminum product. At primary aluminum’s embedded carbon of ~8–12 kgCO2e/kg, this component alone contributes 4–7 kgCO2e — a substantial fraction of the total product footprint in a 28 kgCO2e budget.

Wheel and caster systems add complexity beyond their apparent mass contribution. The injection moulding of wheel housings, the drawing and grinding of steel ball-bearing races, and the compounding and moulding of polyurethane treads each carry separate manufacturing emission contributions. Multi-directional spinner wheel systems (four wheels per bag) involve more components than traditional two-wheel designs, amplifying this hotspot.

Nylon interior lining is a lower-mass but higher-intensity contribution. Even 0.4 kg of nylon fabric at ~6–8 kgCO2e/kg contributes 2.4–3.2 kgCO2e — comparable to the entire carbon footprint of a soft textile product in a simpler category.

Manufacturing is almost entirely concentrated in China, where the combination of thermoforming, injection moulding, aluminum extrusion and finishing, fabric cutting and assembly, and final product assembly happen within tightly integrated supply chains in Guangdong, Zhejiang, and Fujian provinces. This geographic concentration means all manufacturing Scope 2 emissions are calculated against the Chinese grid (~565 gCO2e/kWh).

What Drives Variation

Shell material choice drives the largest between-product variation. Premium brands increasingly offer polycarbonate-only shells, which are slightly lighter than ABS but carry higher per-kg emissions. ABS shells are lower-carbon per kilogram but have lower impact resistance and tend to crack rather than flex under airport baggage handling stresses. A full PC shell suitcase at 3.5 kg may have 2–3 kgCO2e higher shell emissions than an equivalent ABS product; this is a meaningful difference within a 28 kgCO2e total.

Recycled content in shell materials can significantly reduce the score. Samsonite’s Magnum ECO line uses 100% recycled PET (rPET) for the shell, reducing shell material emissions by approximately 60–70% relative to virgin polycarbonate — from roughly 8–10 kgCO2e down to 3–4 kgCO2e for the shell component. Several brands have announced plans to transition to recycled or bio-based polycarbonate, though commercial availability at scale remains limited.

Aluminum content and recycled fraction are important levers. Luggage handles and frames with higher recycled aluminum content (secondary aluminum at ~0.5–1.0 kgCO2e/kg vs. primary at ~8–12 kgCO2e/kg) can reduce handle-related emissions by 80% or more. However, 7000-series and 6000-series alloys for structural applications require specific alloying elements that limit how much scrap can be substituted without alloy degradation.

Soft vs. hard shell represents a meaningful category-level split. Soft-shell luggage (ballistic nylon or polyester body) typically weighs 2.5–3.0 kg for a carry-on format and carries approximately 18–24 kgCO2e — notably lower than hard-shell equivalents due to the absence of PC/ABS shell moldings. The reduced frame complexity in soft-shell designs also lowers the aluminum content. However, soft-shell bags are less protective of contents and have shorter average lifespan under heavy use.

Longevity and repairability are the most impactful consumer-side variables for lifecycle footprint. A premium hard-shell suitcase used 400 times over 20 years amortises its 28 kgCO2e manufacturing footprint to approximately 0.07 kgCO2e per trip. A low-cost bag that fails after 30 uses amortises at ~0.93 kgCO2e per trip — more than 13× the lifetime footprint intensity. Wheel replacement programs (offered by Rimowa, Tumi, and Samsonite for premium lines) extend product life by replacing the highest-wear component without scrapping the entire product.

Size and checked vs. carry-on format scales linearly with mass. Standard checked bags (large, ~4.5–6 kg) carry approximately 35–48 kgCO2e; oversized checked bags (~6–8 kg) approach 50–65 kgCO2e. The per-kg figure of 8.0 kgCO2e/kg holds reasonably well across the product size range.

Methodology Notes

• CCI score of 28 kgCO2e represents a mid-range estimate for a standard hard-shell PC/ABS carry-on suitcase at approximately 3.5 kg, cradle-to-gate. Published Samsonite sustainability data and LCA literature suggests a range of ~18–40 kgCO2e across the carry-on category, depending on material composition and manufacturing origin.
• Scope breakdown: Scope 3 dominates at ~71% (20 kgCO2e), driven by upstream resin production, aluminum smelting, and inbound component logistics. Scope 2 accounts for ~25% (7 kgCO2e) from thermoforming, injection moulding, and assembly electricity. Scope 1 is ~4% (1 kgCO2e) from process heat and facility energy.
• Functional unit: One hard-shell PC/ABS carry-on suitcase, approximately 3.5 kg, cradle-to-gate (retail distribution excluded unless stated).
• Confidence is medium because luggage supply chains are complex and multi-tiered, Samsonite’s published disclosures are at category level rather than product SKU level, and the contribution of imported components (particularly wheels and locks) is not always captured in assembly-country LCAs.
• Category breadth: Travel goods range from lightweight packing cubes (100–200 g, ~0.5–1.0 kgCO2e) to large checked hard-shell suitcases (6–8 kg, ~50–65 kgCO2e) and travel backpacks (1–2 kg nylon, ~8–16 kgCO2e). The per-kg figure of 8.0 kgCO2e/kg is most representative of hard-shell wheeled luggage; soft-shell and fabric-only products will be lower.