Arc'teryx Actinium SS

Retailers' Descriptions

Here's what other sites are saying:

When the mercury jumps and your afternoon hike promises to turn into a sweat-pouring mess, throw on your Arc'teryx Men's Actinium Short-Sleeve Shirt and keep your cool. Quick-wicking fabric pulls sweat away from your skin so it can evaporate faster and speed up your body's cooling process. When you're cool and comfortable, you can cover more ground and see more country.


Arcteryx Men's Actinium SS FEATURES of the Arcteryx Men's Actinium Short Sleeve Mesh fabric with wicking finish transfers moisture for rapid evaporation/cooling Fabric is treated with anti-odour and wicking finish Relaxed cut encourages air flow through the garment for cooling Strategic flatlock construction reduces chafing SPECIFICATIONS of the Arcteryx Men's Actinium Short Sleeve Weight: 5.1 oz / 45 g Fit: Relaxed Viente - 100% polyester ARC'TERYX RELAXED FIT: Arc'teryx relaxed fit garments rely on both articulation and higher volume patterns to provide better comfort and mobility. This is a looser fit that provides room for a base layer plus a thick cold weather mid-layer. If you will NOT wear this style over a base or mid-layer, you may consider sizing down if you prefer a closer fit. Check out the size guide to learn how to calculate your body measurements before selecting a size. This product can only be shipped within the United States. Please don't hate us.

- Moosejaw

The Arcteryx Actinium Tee is a highly air permeable, mesh short sleeve running shirt to keep the body cool in hot weather. Lightweight fabric is treated with anti-microbial finish to reduce odour. Relaxed fit is comfortable in heat. Strategically placed flatlocked seams prevent chafing.


Training in hot weather can really drain you, the ARCTERYX Actinium Short Sleeve Shirt helps to prevent overheating with light, air permeable fabrics and mesh panels for complete breathability and quick dry out times. Flatlock seams redude irritation on long distance runs or under packs.

- Mountain Gear

Nobody puts more precision into creating high-performance fabric than Arc'teryx, and the Actinium T-shirt is no exception. Wear it to stay comfortably cool during tough workouts on warm days. Mesh fabric wicks perspiration away from your skin and dries quickly to enhance the cooling effects of evaporation. You'll stay fresh as a daisy thanks to an antimicrobial finish that fights the funkiness associated with polyester workout clothing. Run farther without chafing thanks to the flatlock seams. The Arc'teryx Actinium T-shit has a relaxed fit.