You won't sacrifice any performance with recycled polyester—it wicks sweat, dries quickly, and holds up just as well as virgin polyester. The only real difference is where the fiber comes from: recycled polyester is made from plastic bottles or ocean waste that's been processed into fabric, giving that material a second life instead of sending it to a landfill.
Recycled polyester jerseys are showing up at every price point now, from budget options to premium kits. You might pay a small premium in some cases, but the gap is shrinking as more brands make the switch. If sustainability matters to you, it's essentially a no-compromise choice—same ride feel and durability, just with a lower environmental footprint.
One thing to check: make sure the jersey still includes a small percentage of elastane (usually 5–10%) blended in for stretch. That's what gives you a close, comfortable fit on the bike, and it's just as important in recycled jerseys as in any other.