UIM1406 Features: * Security Tinted: No * Closure: Self-Adhesive * Envelope Size: 9 x 12 * Format/Border: USPS First Class * Seam Type: Side * Post-Consumer Recycled Content Percent : 0 pct * Expansion: No * Pre-Consumer Recycled Content Percent : 0 pct * Preprinted Message: First Class Mail * Global Product Type: Envelopes/Mailers-Mailer * Window Position: None * Trade Size: #90 * Exterior Material(s): Multi-layer Paper * Total Recycled Content Percent : 0 pct * Envelope/Mailer Type: Mailer Includes: * Custom Imprint Included: No Color/Finish: * Finish: Water Resistant * Color(s): White