DUI DuoTherm II 300 VestDuoTherm II 300 Vest The DuoTherm II 300 Vest is the perfect addition to any drysuit diver's undergarment assortment, especially for those diving water temperatures 45 to 60F. Our DuoTherm II DiveWear is constructed with all way stretch fleece and accent stitching. Delivers warmth, comfort and great styling. Versatile for layering and other outdoor activities. The updated version of DuoTherm II has our new Active Wicking Technology (AWT). Perfect for
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