That's right, we're going back to the glory days with some of our vintage airline shirts. National Park Airways is such a cool one. Started in 1927 not serving any National Parks but just cities in Utah, Idaho, and Montana. But don't worry it eventually got around to Yellowstone and Glacier before eventually being absorbed by Western.

• 100% combed ring-spun cotton
• Charcoal Heather and Carbon Grey is 60% cotton and 40% polyester
• Fabric weight: 6.5 oz/yd² (220 g/m²)
• 20 singles
• Regular fit
• Side-seamed construction
• 1 × 1 rib at collar
• Single-needle edge stitch 7/8″

Detailed sizing charts here.