Caving Undersuit – What To Wear Under Your Coveralls

Caving Undersuit

A caving undersuit is a beneficial tool that will keep you warm on the inside of your coveralls. However, these undersuits are often water-resistant, and they should make it possible for you to go deeper and even get into the water if needed. What is the best undersuit for caving is something you might have been wondering about.

The best undersuit should be constructed from durable materials. However, the most important material to keep in mind is that you will need to make sure it is waterproof. Your coveralls will keep the water out as much as possible, but the undersuit is what will keep you dry. Additionally, it will also keep you warm in colder caves.

Finding the right undersuit is often a challenge for many people. However, we have set up a simple guide that might help you. You can use the following guide to make sure you find the right one for your needs. We have selected a couple of the top undersuits to wear under your caving coveralls, but the small buyer’s guide will make it possible for you to see which features we selected.

What Do You Need To Look For When Buying A Caving Undersuit?

Before looking at some of the top products, you also need to make sure that you find the right features. The following features are important, but we believe every undersuit designed for caving should have them. Therefore, it should be no surprise that we have also used them as a guideline to find the best caving suits.


Since you are using the suit in wet conditions, you will need a waterproof material. Neoprene is a combination of rubbers that have been molded and compressed, and these materials will ensure that you can easily wear these suits. One of the benefits of neoprene is that they are impervious to weather, and they can be waterproof.


As mentioned, these suits need to be waterproof, and the materials you are choosing should be more than enough to ensure that it is waterproof. The suit should not allow water to penetrate, and while you will wear a coverall, the wet suit is the last line of defense. You will need to make sure that you don’t put yourself in a position to get hypothermia.


Once you find the right materials, you will need to keep things like the size in mind. If the unit is too tight is might constrict blood flow, and if it is not tight, it will be saggy. It is important that you feel comfortable when wearing these suits. It would help if you considered looking at the units’ size charts to make sure they will fit correctly.


Since you will have tight suits, you can overheat much easier than in other situations. It would help if you had the right level of ventilation. The suit should be comfortable to cool you off and keep in mind that coveralls are hot. Generally, these materials are thin, which means they will allow air to pass through.


Durability and the ability to stretch can be grouped into one, and while the unit needs to be durable, it should not be rigid. You might need to place your body in unnatural positions, and the suit needs to hold up under pressure. Therefore, it is important to make sure that the suit is durable but allows you to have enough movement.


Finally, we have to include the price. Most caving equipment is expensive, and when you purchase all of the needed gear, it could set you back quite a lot of money. Of course, it would help if you had a suit that does not break the bank.

Top 2 Caving Undersuits On The Market Today

Looking at the features can make selecting the right suit intimidating, and many people might be wondering how to use these features. We have selected a couple of the top options on the market today. If you love caving and you want the right caving suit, you can consider purchasing one of the following options:

Seavenger Alpha 3mm Neoprene Fullsuit Wetsuit

Seavenger Alpha 3mm Neoprene Fullsuit Wetsuit

Where to Get It – Check it out on Amazon


  • Durable neoprene construction
  • Easy fit
  • Easy to stretch
  • Prevents chafing


  • Lacks ventilation

Bottom Line: If you are looking for one of the top options, you can consider the Seavenger Alpha 3mm Neoprene Fullsuit Wetsuit. The suit is comfortable and features a high grade of construction. It is mostly made for diving. However, it works well when the unit has been tested under a coverall and resists water penetration.

ZCCO Ultra Stretch 3mm Neoprene Wetsuit

ZCCO Ultra Stretch 3mm Neoprene Wetsuit

Where to Get It – Check it out on Amazon


  • Comfortable fit
  • Stretches far
  • Solid zipper
  • Abrasion-resistant kneepad


  • Expensive

Bottom Line: When you look at the ZCCO Ultra Stretch 3mm Neoprene Wetsuit, you will notice that it is one of the most comfortable. Unfortunately, the unit does not have tons of ventilation, but it is ideal for cold weather conditions. We would recommend it mostly for wet conditions and to be used in the cold. It might be a bit expensive and mostly designed for advanced cavers.

Caving Undersuit Summary

Having a caving undersuit will make life easier, and it will ensure that you have adequate protection when you are caving. While there are many more undersuits, the above-mentioned options will stretch and keep you warm in cold conditions. However, we would love to read some of your comments and suggestions. Be sure to let us know if we did not select your favorite suits and why you like them.

Need Gear to Go Caving or Spelunking?

If you are planning a caving adventure, you want to make sure that you have the right gear.  Check out our beginners guide for caving equipment.


Lee G.

I love the outdoors! Everything from hiking, climbing, rappelling, and caving.

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