Sports & fitness

Cast iron versus vinyl and neoprene coatings that flake.

Bare cast iron is the long-standing plastic-free option.

Rubber and urethane coatings versus bare iron.

Skin contact through the pad, which is usually vinyl.

Natural latex versus synthetic elastomers.

Shoes and synthetic kit, both replaced frequently.

Kit, bottles and helmet padding in prolonged skin contact.

Boards, wax and neoprene, used in the water itself.

Worn wet against skin and abraded by chlorine.

Boots and shells; membranes are the usual concern.

Ropes and harnesses are synthetic by necessity.

Balls, kit and protective padding, all heavily synthetic.

Tubs and pouches versus refill and paper packaging.

Glass versus plastic bottles for an identical product.

Liquid sits in it warm after training, and it is reused.

Prepared meals stored and reheated in the same box.