I tried the flexi-girth on my 15.1hh
" I tried the flexi-girth on my 15.1hh Gypsy Vanner cob mare who is very broad and her saddle, even though it fits perfectly does tend to slip and roll a bit especially when cantering round corners or jumping.
With the flexi girth it didn't move at all even when fasted looser than my normal girth. Jessica (horse) even seemed to be so much freer in her movement too and her jump seemed greatly improved seeming to have greater stretch and bascule over the fences.
I would not hesitate to recommend this girth its brilliant and I will definitely be back for more for my other horses.