The Captain seat is a long established favourite and is excellent value for money. Including cushions.
Available colours:

WhiteSupplied without pedestal. Fits pedestals with slide only. Use seat cover CCDS or CCSB to keep the seat clean and protected against UV.
Other Details:
D1: 485
D2: 430
H1: 500
H2: 450
W1: 530
W2: 430
ØT: 530
Hole Pattern: R
Weight: 8.3kg