UIM1351 Features: * Security Tinted: No * Closure: Self-Adhesive * Envelope Size: 10 x 13 * 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-Catalog * Window Position: None * Weight : 14.00 lb * Trade Size: #97 * Exterior Material(s): Tyvek * Total Recycled Content Percent : 0 pct * Envelope/Mailer Type: Catalog Includes: * Custom Imprint Included: No Color/Finish: * Color(s): White