Very nice Bike Catsuit with long neck collar. I ordered with original front zipper from neck till chest (same as Picture) which is at the end very hard to slip on. I would recommend to have the front zipper till waist lower if you think of a front zipper option.
We have a lot of zippers on our products here and a lot of options for zippers. A lot of times our patterns come with a pre-set selection, but we can customize more. Locking, WaterTight and even air-tight zippers are sometimes requested as customization features. You can always ask for a quote for something via the "I'd like to customize this product" link on any page. Meanwhile, here's a simple picture to explain the type of zippers and what they are called.