PRO 11 WELLBEINGWorx Series Orthotic Insoles for Plantar Fasciitis and Flat feet

the arch support feels strange is that normal?

What is size 6.5/8uk means coz i bought a boots size 8/42?what should i choose

I have very wide feet and have found it difficult to get insoles to fit correctly and comfortably, are these suitable for wide feet / trainers.

Can these be worn with clogs