Mar 04, 2016 · The downside is that they will shrink and fade. Which are key factors to consider when buying a shirt. So purchase a size larger at least. Polyester T shirts. Polyester tees are will never shrink, wrinkle or fade. The fabric does not breathe. The fabric will out last cotton being synthetic, so washing is not going to ruin the shirt anytime soon.. . Construction: Densely woven cloth, like denim, canvas, wool or synthetic fibers, are more protective than sheer, thin or loosely woven cloth. Check a fabric's sun safety by holding it up to the light. If you can see through, UV radiation can easily penetrate the fabric and reach your skin. Content: The composition of your fabric really matters. Lyocell vs. cotton & polyester. What makes the best t-shirt material will of course depend on your own preferences. But when it comes to sustainability and quality, you can’t go wrong with fair trade ELS cotton and lyocell. They are both natural, durable, soft and biodegradable. And the combination of the two materials looks great.. Polos also come in an array of materials and blends, ranging from silk and wool to polyester and rayon. Below are the polo compositions most readily available for embroidery and branding. Cotton polos are often the most expensive. However, all cotton is not created equal. For a softer, higher quality cotton polo look for words like ringspun or.