Senchi Designs Alpha 90 Half-Zip Hoodie - SiennaAs minimal as a fleece hoodie can get, the Alpha 90 Half Zip Hoodie has practically no features apart from its aforementioned neck zip, the benefit being its feather like weight. Made from an innovative mid weight Polartec Alpha Direct 90 fleece that combined with a windproof layer makes an effective temperature regulating system. Finished with flat seams to eliminate chafing, the anatomical pattern with close fitting hood and integrated thumb loops