M29 is our standard linen card stock option. Each card contains a blue core centre layer to reduce card transparency.
This M29 card stock is made by sandwiching a blue opaque adhesive core between 2 layers of paper. It is used to limit the amount of light being able to shine through your cards.
The opaque core also helps prevent cards with a lightly printed back from having its face visible from the opposite side when shined by strong light.
Check out our short video showing this softer, lighter and smoother card stock option in action.
It's easy! To select this cardstock, choose M29 (Standard Linen) under the cardstock options before you proceed to customizing your order.