The Next Generation of Base Layers Craft's Active Extreme 2.0 CN Short Sleeve Base Layer is the next generation of highly functional base layer that allows athletes to perform optimally in fair and cold conditions. It is made of a double-layer fabric featuring CoolMax Air, a high-performance fibre with propeller-shaped micro-channel cross-sections that provide excellent moisture management and breathability for superior performance and comfort. Developed for devoted athletes. Active Extreme 2.0The world’s most advanced base layer once again ups the ante. Engineered to make athletes lighter, faster and better, Active Extreme 2.0 is made of a double-layer fabric featuring CoolMax Air. This exceptional high-tech fabric weighs in at a mere 100 gsm, making the new collection 30 gsm lighter than its predecessor. True to the Active Extreme legacy, the 2.0 comes with technical features such as ergonomic fit and mesh-panels with big holes ensuring total freedom of movement and excellent ventilation. The BE ACTIVE Range BE ACTIVE is a versatile baselayer collection that creates an optimal microclimate for endurance in fair and cold conditions. The garments are made of highly functional fabrics that offer moisture transport and body-temperature management at the highest level. Having been tested and proven since the mid 1970s by athletes across the world – at World Championships and countless of other international first-class competitions – BE ACTIVE is probably one of the most successful base layer collections in the world.