Switch plates: polycarbonate. Water bottle: plastic. Shirts: tri-blend fabrics (mixes include polyester with cotton and rayon; one listing notes 50% polyester with cotton and rayon in the blend).
Machine wash. Tumble dry low (tri-blend shirts are listed as machine wash and tumble dry low).
Capacity: 24 ounces. Available lid styles include a straw lid, a chug lid (easy-to-swap chug spout), and a push-button lid (also described as a straw spout option and push-button opening).
They use double-wall construction/insulation to help keep drinks cold longer and reduce condensation; the listings describe the bottles as condensation-proof.