IBU 3 is the full zip sweatshirt for men with suitable for activities like hiking, trekking or ski touring and nordic walking. This power-fleece is made with 4-way stretch brushed fabric. IBU 3 can be used as termic layer thanks to its countless features: good insulation, exceptional breathability and great softness and comfort. Morover, the fabric hasd bacteriostatic, antipilling and UV protection features. Multifunctional side pockets with zip. Slim fit.