TutorialPost 3128 min read
How to Design Outerwear and Coats
How to design outerwear and coats — covering construction, insulation, closures, weather protection, and creating production-ready specifications.
Outerwear design categories
Outerwear ranges from lightweight layering pieces to heavy-duty weather protection:
- Lightweight: Windbreakers, coach jackets, shirt jackets — no insulation, basic weather resistance
- Mid-layer: Fleece jackets, softshells, quilted vests — moderate insulation, layering focused
- Insulated: Puffer jackets, parkas, down coats — significant warmth, weather protection
- Heavy-duty: Ski jackets, mountaineering shells — technical features, waterproof, breathable
- Tailored: Overcoats, peacoats, trench coats — structured construction, fashion-focused
Shell fabrics and weather protection
Outerwear shell fabric determines the garment's weather resistance:
Outerwear shell fabrics
| Fabric | Water resistance | Breathability | Best for |
|---|---|---|---|
| Cotton canvas/waxed cotton | Moderate | Good | Heritage-style jackets |
| Nylon ripstop | Low-moderate | Good | Windbreakers, lightweight shells |
| Polyester with DWR | Good | Moderate | Rain jackets, puffers |
| Gore-Tex / eVent | Excellent | Excellent | Technical outerwear |
| Wool/poly blend | Moderate | Good | Overcoats, peacoats |
Insulation options
If your outerwear includes insulation, specify:
- Down: Fill power rating (600-900+), fill weight in grams, responsibly sourced (RDS certified)
- Synthetic fill: Brand (Primaloft, Thermore, etc.), weight, type
- Quilted lining: Fabric bonded to insulation in channels — specify channel width and pattern
- Sherpa/fleece lining: Weight and pile height
Technical construction details
Outerwear has construction requirements beyond basic garments. Seam sealing prevents water entry at stitch holes. Storm flaps protect closures from wind and rain. Adjustable features (hood drawcords, hem cinches, cuff tabs) let wearers customize fit for conditions.
Include all of these details in your tech pack with clear callouts and specifications for each feature.