I need a new dry-bag as my old Alpkit one is no longer dry. So I would like something about 20L, with straps to turn it into a back pack and, in an ideal world, some way of securing it to the bag of a motorbike, kayak, etc when required.

Anyone know of anything worth a look. Thank you.

Gourdon 20

I quite like the Overboard stuff.

https://www.over-board.co.uk/collections/waterproof-bags

https://www.lomo.co.uk/acatalog/Dry-Boxes-dry-bags-uk.html

As what Qwerty says, Lomo for good solid value kit. It isnt lightweight, or have designer logos, it just works.

+1 for Lomo. I was commuting by motorbike last year, in all weathers, tried a number of things but my Lomo backpack was the only thing that kept everything bone dry. Miles cheaper than branded stuff as well.

I’ve always used Ortliebs both in kayak and motorbike.

I’ve had a Lomo dry rucksack for about 4 years. In the summer it gets used every day and has been with me in multiple trips to Croatia and further.
Still going strong and excellent vfm.