Montane's Allez Micro Pull-On is made from Polartec Power Grid which has raised channels on the inside of the fabric designed to trap air making it warmer than you'd expect from its weight. Highly breathable though warmth is compromised in windy conditions.
The Allez Micro Pull-On uses POLARTEC® Power Grid™, a superbly functional lightweight fabric that traps air and wicks moisture simultaneously through a micro grid structure. Perfect for fast moving activities where thermal comfort and performance are key, the Allez Micro Pull-On can be used either as a technical layering piece or next to the skin as a baselayer in colder conditions.
Montane's Allez Micro Pull-On, provides warmth either next to the skin or over a thin baselayer. Air is trapped in the texture of the fabric which has raised channels on the inside for this specific purpose - so its warmer than you'd expect for its weight.
The backing fabric is pretty open-weave though - this means that its highly breathable but wind whistles straight through it - so on a windy day it won't be anywhere near as warm unless you back it up with a windproof layer.
- Reviewed by BasecampGear