Extremely warm to be warn with a sweater or plaid flannel shirt or any high tech athletic wear. The vest is insulated with a high tech poly micro filler used in mountain climbing and snow board apparel.

Shell Material: 100% high tech polyester, water resistance, wind resistance durable fabric.

Filling: 100% micro tech polyester allergy free filing- Meant for Extreme cold climates.

Size Chart: XS- 0-2, S- 2-4, M- 6-8, L- 10-12, XL- 12-14. Depending on bust size could go up one size.