There are two ways to wear this - there are arm holes directly in the armpit -
the long sleeve will drape. Or you can wear along the long sleeves. 

Size: 12
Colour: White
Department: Women
Style: Kaftan
Fabric Type: Lace
Material: Polyester Polyamide Viscose Elastane
Type: Robe
Closure: Tie
Sleeve Length: Short Sleeve
Brand: mint & berry
Size Type: Regular