Arc'teryx Men's Eon SLW T-Shirt

Base Layers
Best base layer out there. Highly recommend this product for those who need a base layer in unpredictable climates. Keeps you warm in humid and high activity environments. Dries quickly and can be worn again without losing warming properties. I use it for running in a tropical environment with temperatures of 15-17 C and works great by itself.

EXCELLENT QUALITY
I BOUGHT THIS SHIRT FOR MORNING ROCK CLIMBING SESSIONS WHERE IT GETS ALITTLE COLD UNTIL THE SUN BREAKS OUT. THE FIT IS SNUG, BUT NOT TO TIGHT AND THE LENGTH IS PERFECT FOR STRETCHING AND HAVING COVERAGE OVER YOUR BODY. THE SHIRT IS LIGHT BUT VERY WARM FOR A TSHIRT AND IT STRETCHES GREAT WHEN DOING ARM GRABS FOR ROCKS THAT ARE FAR AWAY FROM YOUR REACH. I'M 5'9 175LBS AND HAVE AN ATHLETIC PHYSIQUE AND THE SHIRT IS PERFECT, NOT BAGGY AND NOT TOO TIGHT. THE MATERIAL IS SOFT AND STRONG, HAVEN'T HAD ANY PROBLEMS WITH SNAGGING IT ON A ROCK OR SHARP EDGE. LITTLE PRICEY BUT WORTH THE MONEY IN MY OPINION!

My 3-Season Base-Layer Shirt
I went outside the otherday, and I noticed that I wasn't cold, as I would normally be for this kind of weather. I thought I must have good circulation or something because I just had my Eon on and a T-shirt over it. Later I realized that I was experiencing the effects of wool. This is a basic ingredient for 3 seasons of the year (but not for Summer). And since it is wool, you don't have to wash and change is as frequently as a normal cotton undershirt.