Jack Adams Air Train Trunk designed with a horizontal fly for quick access with nature calls and a contoured pouch to nestle the boys for support. The fabric is micro Lenzing Modal that offers the finest comfort, breathability and hugging form. Made of 95% Lenzing Micro Modal and 5% Elastane Black, XLarge. Chest: 44â  -47â  . Neck: 17â  -17.5â  . Waist: 36â  -38â  .