Vertx Crucible Mid Layer Pullover - Men's Space Force Blue Small F1 SFB SMALL N/A. This highly breathable hoody is crafted with 40G PrimaLoft Gold Insulation featuring Active Vent technology a stretch insulation that provides lightweight warmth while effectively managing moisture. Specifications for Vertx Crucible Mid Layer Pullover - Men's: Manufacturer: Vertx Apparel Fit: Athletic Application: Combat Fabric/Material: 100percent Nylon; 100percent Polyester; Trim: 87percent Nylon/12percent Spandex Elastane Features of Vertx Crucible Mid Layer Pullover - Men's Highly breathable 40G PrimaLoft Gold Insulation Active Vent designed for lightweight warmth to help you manage moisture and keep you comfortable during intense activity. Bidirectional stretch enables freedom of movement Pullover for low-profile wearability and layering Invisible YKK side zippers for ventilation and quick access to waist-worn items Stretch woven underarm gusset to enable freedom of movement Soft touch and high tenacity fabric for comfort and quiet movement making it the optimal layering piece Stretch woven cuff closure with thumb loops Hidden mini stash pocket at hem to pre-load items up to 2in long Package Contents: Vertx Crucible Mid Layer Pullover - Men's Vertx F1 VTX8850 SFB SMALL N/A: Crucible Mid Layer Pullover - Men's Space Force Blue Small