River Birch Softstyle T-shirt Heather HeliconiaRiver Birch Softstyle T shirt Heather Heliconia 4. 5 ounce, 100% ring spun US cotton 65 35 poly ring spun cotton (Heather Heliconia) Non topstitched 5 8" rib collar Taped neck and shoulders Tearaway label Modern classic fit tubular body Double needle sleeves and hem HOW TO MEASURE CHEST WIDTH Measure under the arm and around the fullest part of the chest with arms down, keeping tape horizontal. SIZE CHART S M L XL 2XL 3XL 4XL 5XL Chest 34 36 38 40 42