It seems like you're referring to a "practical wooden shirt," which might sound a bit unusual, as shirts are typically made from textiles rather than wood. However, if you're looking for a concept or an idea related to this, here are a few possibilities:

1. Artistic or Fashion Statement: A wooden shirt could be a unique piece of art or fashion, perhaps made from thinly sliced wood veneers. It could serve as a statement piece in avant-garde fashion or as part of a costume.

2. Functional Wear: If you're thinking about practicality, a wooden shirt could be designed for outdoor wear, possibly incorporating wood as a protective layer against elements, combined with other materials for comfort.

3. Sustainable Fashion: With a focus on sustainability, a wooden shirt could be made from reclaimed wood or sustainable sources, promoting eco-friendly fashion.

4. Craftsmanship Project: If you're looking to create something practical and artistic, you could consider a DIY project where you design and construct a shirt-like garment using wood, incorporating elements of woodworking and textile arts.

If you had something specific in mind regarding a practical wooden shirt, feel free to elaborate, and I can provide more tailored information or ideas!