A middle multifunction layer thanks to the combination of POWER GRID by POLARTEC in the center part of the garment's body and the SKIN-LIFE and DRYARN fibers with SEAMLESS technology on the sides. This is to guarantee excellent thermal insulation qualities that, combined with the high elasticity of the side inserts, make it particularly functional and wearable. Body heat is kept inside the garment, while sweat passes freely through the POLARTEC channel structure allowing you to feel dry and pleasantly warmth. Experimentation through the combination of different structures has led us to the creation of this unique middle layer. Warm as a second layer and wearable as underwear make SHUTTLE the basic product for your technical clothing.