| RefrigiWear ASTM Composite Safety Toe Boot #B19 | Brown | Ragg Wool/Leather | 8. RefrigiWear ASTM Composite Safety Toe, 8" oiled full grain leather, 1000g Thinsulate® Ultra insulation, removable shock absorbing 7mm comfort insole, Goodyear Welt construction, slip resistance rubber outsole stays flexible in subzero temperatures. Comfort rating to -25°F. Full Sizes: 7 - 13. Half Sizes: 8½ - 11½ RefrigiWear ASTM Composite Safety Toe Boot #B19 | Brown | Ragg Wool/Leather | 8... - RefrigiWear ASTM Composite Safety Toe Boot #B19 | Brown | Ragg Wool/Leather | 8. |