The Weezle waistcoat / body warmer in Extreme weight for everyday wear. The Argon is filled with the same filling as an Extreme Plus Undersuit but with a ‘Ripstop’ Paratex outer and zipper fastening. This comes in grey and black with a black lining or black with a black lining. The collar has been made smaller but is not removable.The two outer and one inner pockets all have the security of a zip.