I recommend ordering your tee size. 

• 100% polyester 
• Interior water-resistant coating
• Waterproof pressure resistance: 600 mm
• Fabric weight: 2.5 oz/yd
• Regular, comfortable fit
• Matte finish eyelets and zippers
• Rubber zipper pull tab
• Reversed zipper tape
• Three-panel hood with a fine mesh liner
• Welt pockets with mesh pocket bags
• Tightening toggle for the waistband
• Elastic cuffs