Men's Running Short Sleeve Shirt

Regular price$219.00

The Xitanit® 2.0 material has the ability to keep the heat on the outside whilst making you stay cool on the inside. Perfect for runs in sun exposed areas or overheated cities. Beat the heat.

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Size chart







Chest (in cm) 90-96 96-102 102-108 108-114 114-120
Waist (in cm) 77-83 83-89 89-95 95-101 101-107
Chest (in inch) 35-38 38-40 40-43 43-45 45-47
Waist (in inch) 30-33 33-35 35-37 37-40 40-42
Reflects sun heat

Don't let the sun heat slow you down! Stay cool and don't overheat even in extreme conditions.

Optimal ventilation

Keep your body optimally ventilated during sports. Our patented technologies remove moisture and keep you comfortable.

Freedom of movement

Enjoy full freedom of movement, without restrictions or limits. Move with confidence and style!

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Product weight 50G-1.76OZ
Fabric Content 69%Polyester, 28%Polypropylene, 3%Elastane

Free EU shipping on orders over €150 (Italy over €75)
Shipping costs from €7, depending on country. Shipping time approximately 3-6 days.

Free Switzerland Shipping on orders over CHF150. Shipping time approximately 4-5 days

Free US shipping on orders over $200. Shipping time approximately 4-6 days


Developing the ultimate functional sportswear is not enough for us. Our goal is not only to provide you with the best gear in the high performance sports world, but also to ensure that your investment meets all your needs, requirements and expectations while performing at its best. We offer a two-year X-Bionic warranty on our revolutionary products.

Most Important Information

X-BIONIC® FENNEC 4.0 Running Shirt Short Sleeve Men

  • XITANIT® 2.0. The high-performance yarn with extraordinary properties. 1. Reflection of heat radiation. 2. Extremely fast transfer of moisture.
  • ONLY WITH X-BIONIC® 4.0: INNOVATIVE RETINA® ULTRA-HIGH-DEFINITION TECHNOLOGY. Provides ultra-high definition texture, ultra-high density function transmission and ultra-high precision body zoning.
  • AWARD-WINNING, PATENTED 3D BIONIC SPHERE® SYSTEM WITH THERMOSYPHON® TECHNOLOGY. Features complex 3D structures of inner and outer air channels. It cools when you sweat and warms when you are cold.
  • NEURAL-RESPONSE-EFFECT. X-BIONIC® Partialkompression® optimises neural impulses between muscles and brain; increases muscle reactions and coordination; decreases the risk of injury and exhaustion.
  • 100% PURE SWISS ENGINEERED. Made in Italy. 700+ international awards and test wins, 800+ patent registrations for the products with the "X".


Don't let warm temperatures put you off and stay efficient with the X-BIONIC® FENNEC 4.0 RUNNING SHIRT SHORT SLEEVE MEN even at the highest temperatures. The new 4.0 generation is the first to feature the Retina® ultra-high definition quality for unique accuracy of functionality. For a targeted effect, intelligent functional zones can be positioned even more precisely in the ultra dense knitted fabric. Feel the technological advantage of the legendary patented 3D Bionic Sphere® System with ThermoSyphon® technology: complex 3D structures and Y-shaped elements maximize air exchange, cool when you sweat and warm when you are cold - now faster and more efficient than ever. Your additional performance booster: X-BIONIC® Partialkompression® exerts targeted compression, reduces muscles oscillations, supports muscles and joints and optimises the transport of nutrients.

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