The 25 Best Ribbed Sweaters That Look Triple the Price Who What Wear Scoop Women's Rib Knit Sweater with Elbow Length Sleeves, Lightweight Rib Knit Round Neck Long Sleeve Sweater Ribbed Crewneck Sweater Madewell. Details Composition: 42% Acrylic, 28% Nylon, 30% Polyester Design: Plain Thickness: Warm Material: Knit Size & Fit Stretch: High Stretch Fit Type: Shift Cm Inch Size US Shoulder Bust Length XS 2 19. 7 36. 2 18. 5 S 4 20. 5 37. 8 18. 9 M 6 21. 3 39. 4 19. 3 L 8 10 22. 4 41. 7 19. 7 XL 12 23. 6 44. 1 20. 1 XS 2 50 92 47 S 4 52 96 48 M 6 54 100 49 L 8 10 57 106 50 XL 12 60 112 51 Care Instructions Hand wash cold with like colors Do not bleach Flat dry Iron at a maximum of 110C 230F Do not dry clean