Rise above the competition. Envelopes include all the standard features that are expected of commercial business envelopes, such as an open side side seam and durable white wove paper. However, unlike traditional envelopes, they're designed with Park Ridge™ detailing. The ridges elevate any mail's appearance, regardless of the contents, to catch the recipient's attention. The spacious surface can be still be printed on, and the gummed closure seals tightly shut as usual.