Standard ink jet transfer paper for many fabrics. The standard transfer sheets (7/pk) are clear and tranfer nicely to light colored fabrics. The dark fabric transfer sheets (5/pk) use a white backing to show clearly on dark fabrics.
From the manufacturer:
High-resolution, iron-and-peel transfer paper. Print your own artwork, snapshots, scanned images, internet graphics, logos or patterns. Transfers to T-shirts, quilt blocks, home decor items and more. Compatible with most polyesters, cottons and poly-cotton blends. Tightly woven fabric provides the best image resolution. Machine wash and dry.