i use a loopy harness and a nylon lead . recently we have been letting bell run in the park everyday so i have a nylon harness as the loopy hangs down and she was getting tripted up . but once on the tarmac ill put the loopy over it . its suprising how much more she listens with the loopy on .
I hear different training classes like and dont like different things like certain colla's and harness's id stick with just buying a lead for now and as your trainer what he/she thinks is best
tesco do a really nice looking colla and lead set for £4.99 i havent checked the size but it shows a jrt wearing it