Smart Object that's the way for apply your design, which will follow form of the shape.
All tubes are separated from the background, that's let you put it on any background.
Files contains next levels:

— Highlights and shadows (Editable via Levels, Exposure or any other Ps Tools),
— Smart Objects for your designs,
— Editable White Background.

All these mockups can be purchased at the links below.

1) Women's Sport Kit Mockup - Front View

2) Women's Sport Kit Mockup - Back View

3) Women's Sport Kit Mockup - Front Half Side view

4) Women's Sport Kit Mockup - Back Half Side view