Here's a Karrimor SF Hydro 30 rucsac in good condition. I like it. It's great as a rucsac for use in the field as it swallows kit but is cleverly designed in such a way that it's easy to sit down when it's on. Unfortunately, for me, the inner main compartment cannot take a pad of A4 paper so it's no good for commuting (the other intended use when I bought it) so regrettably, it's now for sale. It's well made and there's oodles of life left in it.
Payment by bank transfer only. Fully posted for £32.
There's a small repair on the waist belt (see photo) from the previous owner but otherwise it's all in good condition.