I’ve got a Rab Storm bivi which is pretty spacious so I want to add a tie out to the outside to lift it off my face. I want to attach to the waterproof outer, anyone got any suggestions on a type of tie out and a glue to attach it with?

No sewing required. Won't damage the fabric and easily moved / removed.

https://www.ultralightoutdoorgear.co.uk ... clips-p447

That looks like a great solution, cheers Stu.

Anyone used these to guy out the back of a SMD Lunar?

A stick on loop would be my choice, my mate Paul at Treadlite gear usually stocks them

https://www.treadlitegear.co.uk/pair-tr ... -515-p.asp

Or if you’re DIY minded you could knock something up and glue it on with silicone