The hmlCORE XK POLY SHORTS are made using double-knit fabric with built-in BEECOOL® technology. This means the shorts offer enhanced breathability, great durability, and quicker drying during and after sport. These hummel® shorts have an adjustable drawstring in the waistband for creating the perfect fit.The hmlCORE XK CORE POLY T-SHIRT S/S is a great addition to your activewear collection. This Hummel short-sleeved T-shirt is made from polyester interlock fabric with BEECOOL technology. This means it keeps you cool as you work out and is durable, so it can be worn again and again. The printed chevrons and logo add a hint of style.