​A raincoat is a waterproof or water-resistant coat worn to protect the body from rain. It’s often worn over regular clothes and is designed to keep the wearer dry in wet weather.

​🌧️ Purpose of a Raincoat

• Protection from rain, wind, and sometimes snow.
  
• Comfort in wet or stormy weather.
  
• Versatility, often used for commuting, hiking, or travel.
  

🧵 Materials Used in Raincoats1. Nylon

• Lightweight, flexible.
  
• Often coated for waterproofing.
  
• Good for wind resistance too.
  

2. Polyester

• Common and affordable.
  
• Often treated to resist water.
  
• Dries quickly.
  

3. Gore-Tex (and similar membranes)

• Waterproof and breathable.
  
• Used in high-performance rainwear.
  
• Keeps water out while allowing sweat vapor to escape.
  

4. Polyurethane (PU) Coated Fabrics

• Waterproof but less breathable.
  
• Smooth and rubbery texture.
  
• Common in urban-style raincoats.
  

5. PVC (Polyvinyl Chloride)

• Fully waterproof.
  
• Heavier and less breathable.
  
• Common in low-cost or heavy-duty rainwear.
  

​🔍 Key Raincoat Features🛡️ Waterproofing

• Waterproof: Blocks all water.
  
• Water-resistant: Handles light rain.
  
• DWR (Durable Water Repellent): Surface treatment that repels water.
  

🌬️ Breathability

• Allows moisture (like sweat) to escape.
  
• Measured in g/m²/24h (higher = more breathable).
  

🚶 Mobility

• Stretch panels, ergonomic cuts help with movement.
  
• Lightweight fabrics improve flexibility.
  

🧵 Seams

• Taped or sealed seams: Prevent water from entering through stitching.
  

🧥 Hood Design

• Adjustable, helmet-compatible (for sport use), or packable into the collar.
  

🛠️ Zippers and Closures

• Waterproof zippers or storm flaps prevent leaks.
  
• Velcro cuffs and drawcord hems keep water out.
  

🧠 Pro Tips for Choosing a Raincoat

1. Check the hydrostatic head rating (measured in mm):
   
   • 5,000 mm = basic rain
     
   • 10,000 mm = moderate rain
     
   • 20,000+ mm = heavy/storm rain
     
2. Pick the right length:
   
   • Short = more movement
     
   • Long = more coverage
     
3. Prioritize breathability for active use.
   
4. Consider packability for travel or hiking.
   
5. Match it to your climate: Waterproof + insulated for cold, breathable + lightweight for hot, humid areas.
   

🌡️ Raincoat Layers ExplainedRaincoats can be:

• 2-layer: Outer fabric bonded to a waterproof membrane.
• 2.5-layer: Like 2-layer, but with a thin coating inside to protect the membrane.
• 3-layer: Outer fabric, membrane, and inner lining — most durable and breathable.

​🧽 Raincoat Care and Maintenance

• Cleaning: Use mild detergent. Avoid fabric softeners.
  
• Reproofing: Reapply DWR treatments periodically.
  
• Storage: Store dry and uncompressed to maintain waterproofing.
  
• Drying: Air dry or tumble-dry low (if fabric allows) to restore DWR finish.