LAVA Pants Special

Size Guide

LAVA PANTS are the secret weapon to making you train smarter and swim faster.  They will be your #1 swim training tool and make you a faster, smoother swimmer. Retire your pull buoy and focus more power on your swim stroke and proper body position.

SPECS - 5 mm premium neoprene on the front and back.  Drawstring for a snug fit.  Ends mid-calf (capri cut).  

This "training wetsuit" offers race-level buoyancy and a natural range of motion at every training session, which over time improves technique and pacing while building muscle memory.  Proper body position increases stroke efficiency and adjusts for the proper catch-phase for racing.  Dynamic design makes LAVA Pants comfortable to train in and easy to change into and out of.

The waistband is low-cut, allowing for natural breathing and comfortable flip turns.  As a 3/4-length pant, LAVA Pants are easy to put on in or out of the water, for a quick transition from warm up to work out to cool down. Originally designed for pool swimming but ideal for open water swims as well.  LAVA Pants are a viable training tool for pool and open water swimming.

LAVA PANTS are completely legal under the new rules set by USAT and WTC when wetsuits are legal. LAVA PANTS are a wetsuit and can only be worn in races that permit wetsuits.  They are primarily intended for training but are quickly showing up on the starting line of many triathlon and open-water swim races.

Lava Pants are one of the best swim training investments you can make.


Market Leader

30-Day Return Policy


1-Year Warranty

Based in San Diego, California

XTERRA WETSUITS is the number one best-selling triathlon wetsuit company in North America, trusted by more triathletes than any other brand.
We want to make sure you have the right fit and model. Even take it for a swim. You have 30-days from the ship date for returns.

Made from limestone-based neoprene, thereby making our wetsuits 95% water impermeable (compared with 70% for petroleum-based) and more environmentally friendly.

Our wetsuits are warranted against manufacturing and material defects for one year from the date of purchase.

Headquarters are located where the sport of triathlon began. Privately owned by two locally based triathletes. Making high-performance wetsuits since 2001.
Customer Reviews
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Filter Reviews:
    Douglas R.
    United States United States

    lava pants review

    snug fit. loving it!!

    United States United States

    Great helper

    I am 5’9 and 139 lbs. started out with a Large! Had to change this to a Medium ( now I think Small would have been fine). The shorts are fairly thick and definitely help lifting the hip and improving swim position. My times are faster using these shorts. I hope it will eventually translate to a better position without these shorts.

    Denny B.

    Love my Lava Pants..

    I’m a big boned individual and quite thin and didn’t have enough floatation to keep my legs from sinking.. The Lava Pants were a great solution..

    United States United States


    So after about a 10-year hiatus from swimming, my form was/is terribly off. The Lava Shorts are helping a great deal because I can focus on the upper body mechanics and breathing. I'm not a natural floater and my body density just sinks, especially the backside. I'm using them as a training aid currently and possibly even for race day if the temps are right. I would highly recommend this product to help in your training. Plus, it's by far the best price available for a comparable product. Just buy them... no excuses. You'll be glad you did. Rick S

    Size Guide