Harkila Mens Kalix HSP WaistcoatHarkila Mens Kalix HSP Waistcoat Our Kalix HSP Waistcoat is a high performance mid layer designed for adaptability. With its reversible design and modern fit, it transitions seamlessly between hunting styles and terrain, offering both camouflage and a clean, functional look. The 90g Thermo Poly Shield Fill provides reliable warmth without bulk for cold mornings or layering under a shell. To see more from Harkila, visit the Harkila Collection