Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to choose ski bindings [title] Choose standard alpine bindings for recreational skiing. [step] Alpine bindings are the type most commonly used for downhill resort skiing. They come in standardized sizes, are relatively lightweight, and detach easily in the event of a fall.

Ending1: They're most commonly accessible by skiers headed to ski trails or rafting stops. Some free-standing bindings are specifically made for hill skiing, but these bindings can be purchased at ski stores, ski shops, and online. Ending2: [substeps] Beginner skiers should try 1.14 to 1.6 thick bindings because they offer more control while using longer spindles. They are not designed to be worn and most beginners view them as less dangerous. Ending3: They also feature built-in brakes that make them easier to step into and prevent them from sliding away if you happen to come out of them. [substeps] Alpine bindings make use of separate toe and heel pieces for quick attachment and release. Ending4: [substeps] Winter bindings with a rigid outer seam are relatively easy to use. Traveling bindings are more comfortable, longer lasting, and cost less.

Answer format: ending1/ending2/ending3/ending4