Waterproofness Table
Here is a brief overview of waterproofness and outerwear and where Toasty Trails heated vests fall within the rating scale:
DWR Level |
Waterproof Rating (mm) |
Water Resistance Provided |
Conditions |
1 |
0-5,000 mm |
No resistance to some resistance to moisture |
Light rain, dry snow, no pressure |
2 |
6,000-10,000 mm |
Rainproof and waterproof under light pressure |
Light rain, average snow, light pressure |
3 Toasty Trails |
11,000-15,000 mm |
Rainproof and waterproof except under high pressure |
Moderate rain, average snow, light pressure |
4 |
16,000-20,000 mm |
Rainproof and waterproof under high pressure |
Heavy rain, wet snow, some pressure |
5 |
20,000 mm+ |
Rainproof and waterproof under very high pressure |
Heavy rain, wet snow, high pressure |