Our bags are triple-insulated to keep Tea fresh.  They come with tin-ties.  These bags are not heat-sealable.  Sample Envelopes are also part of our catalogue.  Offer samples of new and seasonal teas to your customers - it helps move your product. We cannot guarantee a specific color in Bags.  We usually carry a combination of green, silver, gold, red, blue, brown and black.  Please state your preference and we will do our best to accommodate your requests.