This is a badass vest that is in really good condition. Nearly brand new looking. Every component functions super smoothly. This vest would treat you really nicely as a base or as an exterior layer. This lightweight layer is a wonderful addition to your backpack. It compresses down real small and takes up very little space. Stay warm this spring with this rad addition to your arsenal. This vest, even though we couldn’t identify the exact specs, reminds us of the Mountain Hardware Synergist Vest.