This is a high insulation version of the Mountain Shirt giving a high wicking high warmth performance. The ultra fine acrylic Tecmax pile gives an extremely high warmth to weight ratio. The Tecmax shirt is used by instructors, mountain guides and outdoor professionals. It is ideal for any activity that involves being stationary for long periods. This garment works most efficiently when worn next to the skin. Sizing is important as the shirt should be close fitting but not restrictive. Spacious zipped front map pocket. Storm baffles on neck and side zips. Touch-and-close cuff adjustment tabs. Touch-and-close attachment on collar for hood (separate). Touch-and-close hip adjusters. Handwarmer pocket. Scooped back 10cm longer than the front Rucsac hip belt can be fastened through hand warmer pocket. Tape and buckle waist adjuster. Eight ventilation controls on each shirt including two way side zips. Size: 36 / 38 / 40 / 42 / 44 / 46 / 48 / 50 Weight: 903g Size 38 Tecmax Shirt 36 38 40 42 44 46 48 Chest Measurement 36″91.5cm 38″96.5cm 40″101.5cm 42″107cm 44″112cm 46″117cm 48″122cm Inside Arm 23″58.5cm 23″58.5cm 23″58.5cm 23″58.5cm 23″58.5cm 23″58.5cm 23″58.5cm Neck 18″45.5cm 18″45.5cm 18″45.5cm 18.5″46.5cm 19″48.5cm 19″48.5cm 20″51cm Shirt Back Length 31.5″80cm 31.8″80.5cm 32″81.5cm 33″84cm 33″84cm 33.5″85.5cm 34″86.5cm Shirt Front Length 26″66cm 26.5″67.5cm 27″68.5cm 27″68.5cm 28″71cm 28.5″72cm 28.5″72.5cm