The word Cutsew comes from the words "Cut&Sew" and is a Japanese term. It is used to describe a top with stretchy fabric sewn together. 

The main part of the shirt is of stretch material, but the sleeves and collar can be of other fabrics, usually decorated with laces and bows, pearls, etc. 

Cutsew tops are made of opaque material and can be worn with Skirts. They are very appreciated with Salopettes for a more casual look. You can also wear it under a Jumperskirt for a pop and kawaii outfit. 

You can wear it on any occasion, summer and winter, since you can find Cutsews with long or short sleeves. 

The Lolita Pullover is like a Cutsew by some aspects: tee-shirt fabric, more casual design. However, the Pullover has been designed to perfectly fit on a Lolita dress, as it stops right above the skirt part. 

The Pullover can be decorated with laces, ribbons, detachable collar and even a hood sometimes. 

The Lolita Pullover is perfect to wear on top of a Onepiece or a Jumperskirt. 

As it is opaque, you can also wear it under a Salopette or with a Skirt.