There is no better name for this paper than ENVIRONMENT.
ENVIRONMENT Ultra Bright White Card Stock - 8 1/2 x 11 in 100 lb Cover Smooth 80% Recycled 250 per Package
Cardstock 101: How to Choose Paper for Wedding Invitations
100 lb Paper Cardstock, Heavyweight Cardstock
Classic Linen Natural or White Discount Card Stock for DIY invites - CutCardStock
Paper Guide
Classic Linen Natural or White Discount Card Stock for DIY invites - CutCardStock
White Card Stock 100-lb Cover Linen Paper
Hammermill Cardstock, Premium Color Copy, 100 lb, 17 x 11-3 Pack (750 Sheets) - 100 Bright, Made in the USA Card Stock, 133202C, White
Classic Linen Natural or White Discount Card Stock for DIY invites - CutCardStock
Half Letter Size Card Stock is durable with the same bulk and feel as a premium paper stock and offers rich color reproduction, superior image quality and excellent opacity. They are made from lightweight 65lb Cover (176gsm) card stock and packed flat for easy printing so you can create your own personalized cards right from the comforts of your own home or office. Its dependable performance ensures a trouble-free run so you can focus on creating a superior printed piece.
Blank White 5 1/2 x 8 1/2 Inches | Half Letter Size | 65lb Cover | 100 Sheets per Pack
Staples 110 lb. Cardstock Paper, 8.5 x 11, White, 250 Sheets/Pack (49701)