: I don't often get numb legs, but my problem is in my back, despite several
: physiotherapy sessions over the years. My kayaks both have nicely shaped
: seats but I have to straighten out every half-hour or so or I can hardly
: walk when I get out.

: Both have a bump in the seat between the thighs that nails me right in the
: tailbone when I slide my butt forward.

: On my home-made boat I built a handsome slatted wooden sliding seat with a
: higher than usual back that hinges back as the seat slides forward. This
: allows me to relax and almost straighten my back periodically, and solves
: the problem. With head support, I could sleep in it. Despite being a hard
: seat it does not cause numbness, probably because I curved the bottom and
: back to fit my body, so pressure is distributed.

: The downside was, it took almost as long to make as the hull, but it gets a
: lot of compliments. Unfortunately, it takes up too much space to be
: implemented in a typical kayak.

Could you post or share any photos of this seat configuration? I am quite interested in some of the details as I anticipate having the same type of issue as I get started in kayaking.