Our Boxer Shorts provide soothing warmth that may relieve groin and hip discomfort, and the cold sensation sometimes associated with bladder problems. How do they accomplish this? With Back on Track’s specially designed ceramic-infused Welltex fabric. The ceramic powder reflects your own body heat and creates a soothing far infrared thermal warmth. Our boxer’s fabric is smooth and thin, making it comfortable to wear. https://botcanada.com/ sizing charts can be found https://botcanada.com/sizing-charts/