The ScentBlocker Cap helps protect you from the elements while controlling odors as well. The cap features Cold Fusion Carbon(TM) technology to adsorb odors using the power of activated carbon while a wicking treatment helps manage moisture in the field keeping you comfortable. Cold Fusion Carbon(TM) Adsorbs odors Moisture wicking fabric Keeps you cool and dry Smooth, lightweight polyester Great for warm hunts Merino fleece lining Keeps you warm and comfortable Moldable bill For custom feel Rear adjuster Provides a secure fit