There are only really three pieces of equipment specific to mixed lacrosse: a stick, a ball and a gumshield.
Gumshields are compulsory when playing a match and can be found in any good sports shop, it's a good idea to pick one up before getting to a match and finding out you're not allowed to play.
Lacrosse sticks and balls are a little harder to find, but can be easily purchased online.
Sticks and balls are always available for you to use at training and games, however, we strongly encourage you to get one for yourself so that you can practice away from training and you'll pick up the skills you need much faster.
For beginners who are interested in getting a cheaper, perhaps second-hand stick just to practice then we recommend sites such as ebay and amazon. There are usually some cheaper models available.
If you are interested in spending a little more, then here are some websites which can offer more information about purchasing lacrosse sticks: