Birch Dress by Tania Olsen Sizes 4 - 18 TO24174Tania Olsen. TO24174 The Birch Bridesmaid Dress is the epitome of timeless elegance and modern sophistication. Made from luxurious stretch satin, this floor length gown drapes beautifully and feels incredibly comfortable. The V neck with one inch thick straps adds a classic touch, while the pin tuck detailing at the waist front and back creates a flattering silhouette that accentuates natural curves. The side split introduces a contemporary element,