The sleeves and the bottom are ribbed. It's made of a cotton-blend tricot fabric. Model Information Bust: 83 cm Waist: 63 cm Hips: 85 cm Height: 175 cm The model wears a size S product. Product Content and Features Product Content: Main fabric: 53% Acrylic 47% Cotton Product Features: Pattern: Plain Fit: Tight Thickness: Thin Sleeve Length: Short Sleeve Product Type: Pullover Collar: Polo Neck Fabric: Knitwear Brand: LCW Casual Style: Casual/Casual Silhouette: Fitted Gender: Female