Ridgeline Shell

The Ridgeline Shell is what happens when you apply ultralight an backpacking obsession to dog gear. At 2.75 ounces in a size medium, it's lighter than most humans' rain jackets, and it packs down smaller than your fist.

Built from ultralight silicone-coated polyester, the Ridgeline sheds rain, sleet, and wind. The design stays put on the move, and it layers effortlessly over our Trailhead Fleece or Switchback Puffy when you need full protection.

This is the layer you'll forget is in your pack - until you need it.

Shell: 100% recycled 20D silicone-coated ripstop - water and windproof in the worst conditions
Closure: Top-release buckle with adjustable, lightweight webbing
Packable: Stuffs into your pocket (approximately 3" × 3" × 2")

Weight by Size:
- XS: 1.9oz
- S: 2.4oz
- M: 2.75oz
- L: 3.5oz

The same silpoly ripstop trusted by ultralight backpackers for tarps, jackets, and shelters, now sized for your dog. Recycled content, real performance.

Chest girth is the most important measurement. Measure around the widest part of your dog's ribcage, just behind the front legs.

- XS: Chest 14–17" / Back 10–12"
- S: Chest 17–21" / Back 12–15"
- M: Chest 21–26" / Back 15–18"
- L: Chest 26–32" / Back 18–22"

Between sizes? Go up - our layers are designed to stack without sizing up.

View complete size guide with measuring instructions and breed examples → Size Guide