PhD Ultra Light Jacket

PhD® Ultra Light Jacket

For long runs, steep climbs, and summer adventures. Go far.

PhD Ultralight shell jacket

Lightweight Shell

won’t slow you down

Temperature Regulating

body mapped mesh and Merino

Quick Drying

don’t sweat the sweat

PhD Ultralight shell jacket

Merino Where it Matters

next to skin comfort


easy-to-spot visibility


made to go the extra mile

This ultralight jacket may be a lightweight shell, but it’s packed features and benefits that make it one of our most advanced pieces of technical outerwear. With its DWR coating, body-mapped Merino, and durable construction, it’s designed to help keep you comfortable as you venture out past your limits and expectations.

PhD Ultra Light Mens and Womens Jackets