About iDFITNESS
Be yourself at iD.
iD stands for identity. Come as you are, train with people who’ve got your back, and leave every session stronger, fitter and more balanced than when you arrived.
What we’re about
Strong. Fit. Balanced.
Life is a balancing act. Our True Line philosophy is about making you the steady centre for whatever life puts on your scales, with strength training that supports you in the gym and everywhere else.

Strong
Build real strength that keeps you capable, confident and resilient for life.

Fit
Improve your engine, your mobility and your energy, at a pace that suits you.

Balanced
Feel centred in body and mind, with training that fits real life.

Your coach
Nick Collins.
Founder & head coach
A strength and conditioning specialist with experience across professional sport, working with athletes, movie stars and everyday people. Nick brings the same performance principles to every iDFITNESS member, in a way that’s clear, personal and built for real life.
The shared experience
More than a gym.
From summer games to marathons and retreats abroad, iD is a community. Our members train together, celebrate together and travel together with the wider iD Group.




The 21-day strength kick-start
Three weeks to feel like you again.
- Unlimited group strength training and performance classes
- Goal-setting session with your coach
- Entry-level nutrition set-up
- InBody body composition scans to track your progress
- Sessions on the hour, early mornings to weekends
Booked and paid securely through TeamUp. At the end of your 21 days we’ll take you through your membership options.

The iD Group
Meet our partners