Do swimming wetsuits degrade over time even if not used?

Yes. A swimming wetsuit can lose flexibility and seam strength even if it never touches the water. Neoprene ages over time. Heat, sunlight, folding, and moisture speed the process. Most of that damage depends on how you store the suit.

Why unused wetsuits age

All Blue70 wetsuits use Yamamoto neoprene in 38, 39, and 40 cell. The higher the cell number, the more flexible the foam. High-flex panels in the arms and shoulders are especially sensitive to creasing. Over time, the rubber-like material oxidizes, stiffens, and cracks if it is folded under weight or exposed to heat.

Adhesives and seam tapes also age. A suit left in a hot attic or car trunk develops brittle seams even without use. Zippers corrode or stiffen when stored with salt or chlorine residue on the teeth. Storage conditions shorten or extend the material's usable life.

Stiff foam and permanent creases also affect fit. A sharp crease leaves a flat spot that changes how the panel lies against your body. That flat spot does not recover its original thickness the way a cotton shirt crease does.

Storage mistakes that speed up aging

  • Heat. A car trunk, garage, attic, or sunny window pushes neoprene past its comfortable temperature range and weakens glued seams.
  • Direct sunlight. UV exposure breaks down neoprene and fades nylon panels.
  • Sharp or tight folding. A suit folded at the same crease for months forms a permanent dent in the foam, especially in the shoulders and hips.
  • Being put away wet or salty. Salt, chlorine, and lake water residue dry out the material and corrode hardware.
  • Compression. Storing a wetsuit under a stack of gear flattens the foam cells and reduces flexibility.

How to store a Blue70 wetsuit

  1. Rinse the suit in cool fresh water after every swim. Turn it inside out and rinse the lining too.
  2. Dry it away from direct sun, inside and out, before storing. Let the outside dry, then turn it inside out. Do not wring or twist the neoprene.
  3. Store the suit flat or loosely rolled in a cool, dry closet. If you hang it, use a wide padded hanger placed at the waist rather than a narrow hanger through the shoulders.
  4. Avoid sharp folds at the same spot. Keep it out of sunlight and away from heat sources and ozone-producing equipment such as furnaces and motors.

For long-term storage, the same rules apply. The damage just has more time to accumulate.

Inspecting an older Blue70 suit

Before the season starts, do a five-minute check.

  • Flex the neoprene in the arms, shoulders, chest, and legs. It should feel pliable, not stiff or crumbly.
  • Look for creases that stay white or flat when the suit is relaxed.
  • Check seam tape and glued edges for lifting, brittleness, or separation.
  • Check the zipper teeth and pull. Move the zipper slowly. Force can damage teeth and is not covered by warranty.
  • Check the wrist, ankle, and neck seals for cracks or tears.

If you own a Helix, check the thin, high-flex panels in the arms and shoulders first. Those panels give the suit its race-day range of motion, and they are the first place crease damage appears.

Small punctures and cuts can often be repaired with Aquaseal neoprene cement, which Blue70 carries in its wetsuit care range. Larger seam failures or zipper damage should go to us@blueseventy.com for a repair assessment.

What the Blue70 warranty covers

The one-year warranty covers manufacturing and material defects for the original owner. It does not cover storage damage, heat damage, fingernail punctures, heel tears, zipper damage from force, or normal wear and tear. If you leave a new suit in a closet for a full season and then find a defect, you still have the warranty window. The 30-day exchange window and Test Swim option are better tools for checking fit and finish soon after purchase.

Storage habits determine lifespan

An unused Blue70 wetsuit does not stay new forever. A suit that is rinsed, dried, and stored flat in a cool closet holds its flexibility and seam strength longer than one left damp in a hot car. Treat neoprene as a rubber-based technical material, not ordinary clothing. Happy swimming.