Lululemon Final Lap Dress Hit the ground running in a sleek one-piece. With a built-in short liner and drop-in pockets, this run dress lets you concentrate on your playlistnot your outfit. Luxtreme fabric is sweat-wicking, four-way stretch, and engineered not to shrink. Added Lycra fibre for stretch and shape retention. Rectangular gusset panel between the legs is shaped to give you full range of movement and a flattering fit. Built-in short liner has drop-in pockets at the thigh Luxtreme 77% Nylon, 23% Lycra Elastane.