Arc'teryx Actinium Sleeveless

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Arcteryx Men's Actinium Sleeveless FEATURES of the Arcteryx Men's Actinium Sleeveless 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 Sleeveless Weight: 4.2 oz / 120 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

Hot days call for a cool, comfortable shirt, and the Arc'teryx Men's Actinium Sleeveless Shirt uses quick-wicking, ventilated material to keep you going when the temperature rises. Whether you're working out in a hot, sweaty gym or pushing through a 20-mile day with a backpack strapped to your back, this shirt will help you stay cool.


The Arc'teryx Actiniums Sleeveless Top is a lightweight, highly air permeable, mesh sleeveless running top that keeps your body cool in hot weather. The fabric is treated with anti-microbial finish which reduces odor and flatlock seams prevent chafing.


A smartly designed, high-performance top from Arc'teryx, the men's Actinium Sleeveless Shirt helps you stay comfortably cool during tough workouts on warm days.