Sundial Dog Gear
Traverse Sun Shirt
Part of the LayerTech system: each layer works alone, and all layers mechanically connect. Technical fabrics with an articulated cut for full range of motion. Designed in Colorado. Sewn in Colorado.
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Polartec® Delta cooling in a UPF-rated layer. Built for hot days.
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Why We Made This
The Traverse Sun Shirt is built from Polartec® Delta - the best cooling fabric on the market today. Built for hot days and direct sunlight, this ultralight, UPF 30 layer is a must have.
The Sun Shirt fits a wide range of dog builds and stays put whether you're scrambling talus or logging trail miles. It layers seamlessly under our Puffy or Shell when conditions turn, or wears alone on bright, hot days.
Handmade in Colorado. One layer at a time.
Technical Details
Materials & Construction
Fabric: Polartec® Delta (67% polyester, 30% Lyocell, 3% spandex)
Closure: Top-release buckle with adjustable webbing
Weight by Size:
- XS: 2.8oz
- S: 3.9oz
- M: 5.1oz
- L: 6.5oz
The same grid fleece construction used in premium human base layers. The raised grid pattern creates air pockets for insulation while reducing overall weight. Made from 100% recycled polyester - warm, light, responsible.
Sizing
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