From the Ultra Soft Collection. Catch zzz's in breezy comfort with the Jockey® Men's Ultra Soft Cooling Sleep Shirt & Pant Pyjama Set, designed to help you stay cool so you can truly rest and recharge. Its soft jersey fabric is made in part with recycled polyester for a refreshing feel . The pants have an ultra smooth elastic waistband that stretches for a comfortable fit, convenient side pockets and a functional fly.