The Shield S3 Cap helps protect you from the elements while controlling odors as well. The cap features S3A(R) silver antimicrobial technology to adsorb odors while a wicking treatment helps manage moisture in the field keeping you comfortable. S3A(R) silver antimicrobial technology For odor prevention Moisture wicking fabric Keeps you cool and dry Smooth, lightweight polyester Great for warm hunts Moldable bill For custom feel Rear adjuster Provides a secure fit