RHO - Thermally efficient base layer with excellent moisture management properties. Has stretch comfort. ALL ROUND - High performance weather protection and materials, emphasizing versatility for multiple activities. POLARTEC - Synthetic fleece textiles with stretch, warmth and air permeable properties. Offers durability. MULTI-USE - Versatile high performance designs for diverse activities and conditions. #1,353,688 in Clothing, Shoes & Jewelry ( ) #322 in