Montbell Dry Suit XS (Includes free gloves and neckband)

Price reduced!

There are wrinkles and stains on the neck, but they do not affect performance.
Worn for about 10 times over two seasons, for 1-2 hours each time at the beach.
Washed with water and air-dried in the shade after each use.

From the website:
This is a one-piece drysuit suitable for those who enjoy paddle sports in the colder seasons. The material combines our proprietary waterproof and breathable fabric, boasting a water pressure resistance of 30,000mm, developed specifically for our dry series, with a durable outer fabric. The collar, cuffs, and ankle gaskets use easy-to-maintain and user-friendly Climaprene® gaskets, and the waist drawstring allows for adjustable fit. Recommended for touring and rafting, as well as outfitters.

[Material] Dry-tech 3-layer [Face: 70x140 denier nylon taslan]
(Neck, wrists, ankles) Climaprene® [Chloroprene rubber]
[Average weight] 792g
[Color] Blue (SPBL)
[Size] XS

I am 154cm and 45kg, and felt it was a bit large for my petite frame. So, it might also fit larger children.
The rubber around the neck, wrists, and ankles provides a snug fit, preventing almost any water from entering.
I always wore a fleece or similar layer underneath, and after getting out of the sea, I could just take off the drysuit without needing to change clothes. The zipper is also sturdy.

As a bonus, I will include used Montbell Light Climaprene Gloves (XS) and a BBC Neck Adjust Band (this can be attached to the neck gasket to further prevent water entry). The gloves are for use in warmer weather. Both are in good condition.

Drysuit: ¥68,200 (tax included)
Gloves: ¥4,600 (tax included)
Neck Adjuster: ¥1,980 (tax included)