$50 Activation. Built to last with Three Year Warranty. Easy to design a personal workout schedule. Go write one 5 star review about what you love most about your gym! Brittany Webb ... Flex Gym members achieve great success at the 2015 World Powerlifing Championship! Gym is clean, well run, low key. Providing weights, cardio, turf area, cross fit, spin and group X classes and child care GymFlex is an amalgamation of many of the UK's leading gym chains, leisure centres, hotel health clubs, independent gyms, boot camps and yoga studios who are committed to supplying us with corporate annual membership rates. Search over 3000 gyms across the UK and Ireland. ). $30 Annual Rate lock. $19.95 Month. Classes can be purchased as part of a monthly membership or individually. Did I just say I love this gym? Flex Fitness has all the luxuries of a corporate gym without the overcrowding and impersonalization. Join now. Discounted annual gym memberships via Salary Sacrifice or Net Pay Deductions. To purchase a FLEX membership, click below: //