Performance Fabric. The UPF 50+ Laya Short Sleeve Tee Dress: The new A-line dress with short sleeves comes with a triple brushed, extra soft, and breathable fabric that will make lasting impressions. Super soft to the touch with the cutest prints, your little girl will stand out in the crowd. We're pleased to announce that it now offers UPF 50+, the highest UV protection certification which blocks 97.5% of cancer-causing UV Rays!