The Mammut Tree Wool Thermal FL 3/4 Tights cut off above the ankle, so the fabric never bunches under a ski boot cuff on a long tour. Merino wool, lyocell, and elastane hold in warmth and pull sweat away from the skin, keeping the legs dry on the climb and warm on the way down. A gusseted crotch and seamless side panels let the legs move through a kick turn without pulling or binding. What Our Gearhead® Experts Are Saying:"I switched to the 3/4 length after feeling extra fabric gather at my ankle inside a stiff touring boot, and this cut just disappears under the cuff instead. My boots buckle the same way they would over bare skin, with none of the extra bulk a full-length tight leaves behind."