When used as directed

Chest & Back: 40% Acrylic / 60% Cotton UPC Label On Product Yes Product Origin CHN Size Chart Quarter Zip Combat Shirt Age Adult Gender Mens Catalog Page 14

and the ST-10 is it

- automatically switches to reserve mode when battery is almost drained

or Basketweave finishes

Rothco BDU Buttons Bag of 100 Color:Olive Drab When used as directedRothcos durable plastic BDU buttons are great replacements for military spec BDUs. Durable Plastic BDU Buttons Great Replacement Buttons For BDU Pants, Shirts And Jackets Simple And Classic Four Hole Layout For Easy Sewing Available In Various Colors, Each With 100 Buttons Per Bag