LID IS PURE GLASS with a silicone ring NO WOOD OR BAMBOO CUPHOLDER FREINDLY< but equally at home on the dining table All glass design. Are you tired of bamboo wood lids that crack and harbor bacteria and mildew? Don't ruin another well crafted drink with a smelly bamboo lid. Upgrade to pure and clean glass! Replace that old water bottle with straw and taste the difference. This glass cup with lid and straw lets the pure taste of your iced coffee, tea, smoothie or protein shake shine through. No plastic or metal to affect the taste or aroma. The high quality glass throughout will not stain or absorb odors. You take the time to make sure what you put in your cup is clean and delicious- make sure it stays that way! Unlike disposable coffee cups with lids, using a glass coffee tumbler means zero waste. Just wash and enjoy! Cup, lid, and straw are top-rack dishwasher safe. 16 fluid oz. capacity tumbler with lid and straw easily accommodates your favorite beverage while still being cupholder friendly. Food-grade silicone ring on the lid ensures a snug fit. Why settle for an ordinary water bottle with straw when you can upgrade to the simple modern design of pure, lead free, heavy metal free and BPA free glass? The timeless appeal of handmade glass works beautifully with our current clean living sensibilities. Other iced coffee cups with lids come with bamboo wood lids that are notorious for expanding when wet and harboring mildew and bacteria. Pure glass will never do that.