Returned the Hurtta harness as the small was a little too big,Jasper now has the Ruffwear flag-line harness in XS and I am equally impressed with the quality,also easy to adjust,fit and remove..We’ve had Jasper for 3 weeks now,he is a Rommie rescue dog(Heinz 57) and still very nervous,although,he is slowly improving..I was as nervous as he is when on walks because of the bolt thing when spooked,slipping from the old harness..We fitted him into his new harness and I am completely at ease,knowing this will not happen..I would recommend these harnesses 100%.. Thank you Andrew Parry