<SPAN class=productTabs><A onclick="showPage('reg_insulation.shtml');return false;" href="http://www.patagonia.com/za/PDC?OPTION=PRODUCT&amp;merchant_rn=7385&amp;sku=25152&amp;ws=false#"><IMG src="http://a248.e.akamai.net/f/248/2630/2w/www.patagonia.com/images/store/products/details/si_rinsul.gif" border=0></A> <BR>Our most technical core warmer comes in an improved, even more versatile fabric. The new R2 vest has variegated fibers to enhance compressibility, breathability, stretch and warmth. With R1® stretch panels along the torso and backs of armholes, and a more contoured fit. </SPAN>