The slits at the bottom of the legs do not restrict movement during training. A drawstring for maximum comfort and the feel that the shorts will not slip off your hips even in the toughest challenges. For a perfect fit, we have added a gusset from our REH-TECH knit on the inside of the leg so that the shorts do not press or chafe at work. Attached with Velcro The Velcro fastener is durable, flexible and integrated into the sublimated patch so it does not irritate the skin. The shorts can be adjusted at the hips with a controlled Velcro fastener and loosen easily with one hand to remove the shorts from the hips.