Choosing the best skis for Masters ski racing
Masters ski racing, unlike junior ski racing, has no fixed ski length or radius requirements! This makes it easy to jump into Masters racing without needing to make a large upfront investment in specialized skis. Most all-mountain recreational skis have radiuses and lengths that work well enough in Masters slalom and giant slalom courses--although we wouldn't recommend using an all-mountain recreational ski for super-g. That said, if you want to use race-specific skis, you can often have more fun and go faster in the race course.
When you're looking for race skis, the first thing to consider are the disciplines that you will be racing in: slalom, giant slalom, and super-g. Each discipline has different recommended ski lengths and ski radiuses, based on the distance between the gates, the speed that you will be traveling, and the size of your turns. In general, slalom skis are the shortest with the smallest radius, and super-g skis are the longest with the largest radius. For Masters racing, when you're first starting out, you will probably want two pairs of skis: one ski for slalom and one ski for giant slalom and super-g.
Slalom Skis
Choosing appropriate slalom skis is pretty straightforward. For women, you want to be looking at slalom skis that are a minimum of 155cm long with roughly a 12m radius, and for men, you'll be choosing skis that are 165cm long with the same 12m radius. Both of these ski types are labeled as "FIS Approved" slalom skis when you're searching online.
Giant Slalom and Super-G Skis
When shopping for a giant slalom ski, start by looking at skis labeled "Masters" or "Non-FIS". Skis that are race-inspired (often colloquially known as "beer league skis" or "cheater skis") also work great for Masters racing. The naming conventions for these skis can vary based on the manufacturer and the store where you're shopping, but in general, giant slalom skis in these categories have a radius between 17m and 26m, and a length between 170cm and 185cm.
Within that fairly broad range of radiuses and lengths, consider your size, strength, and level of race experience to narrow down your choices. Skis that are longer with larger radiuses are going to require more strength and better technique (and often more speed) to flex and carve. In other words, they're going to be harder for beginner racers to use. If you are a smaller skier, a skier with more limited race experience, or a skier with less leg strength, you should tend towards the smaller radius and shorter length end of the giant slalom ski spectrum.
We strongly advise against purchasing "race stock" or "FIS Approved" giant slalom and super-g skis for Masters races. These race stock skis are often labeled as "FIS" and conform to the regulations for NorAm, Europa Cup, and World Cup level competitions. In general, FIS skis are longer with larger radiuses (and are much stiffer) than what is best suited for Mid-Atlantic Masters courses. If you can't tell whether the ski you're considering is a FIS-approved race stock ski, check the length and radius of the ski in the description. For men, FIS giant slalom skis are 193cm long with a 30m radius, and FIS super-g skis are >=210cm long with a 45m radius; for women, FIS giant slalom skis are 188cm long with a 30m radius, and FIS super-g skis are >=205cm long with a 40m radius. Some of our most experienced racers do use FIS race stock skis for our races, but in general, most Masters skiers should avoid these skis to have the most fun in a course.
If you're not totally sure which ski to purchase, reach out on the Mid-Atlantic Masters WhatsApp group for advice. We're a fairly friendly, helpful group of racers, and there are decades worth of racing expertise in the WhatsApp group!

Helmets which meet the FIS standard have a sticker affixed by the manufacturer that states “Conforms to FIS Specification RH 2013”.