A: 24-31 Cm B: 30-41 Cm 15 Mm - S Color Black Features Breathable Nylon To Guarantee Your Animal'S Maximum Comfort Lightweight, Allows Your Friend Not To Suffer Heat In The Summer Sporty Design With Logo Applied On The Front Side In Contact With The Animal'S Chest Reflective Inserts To Be Visible Even In The Evening Or Night Adjustable Thanks To Sliding Buckles Closure With Convenient Clip Clips Ideal For Trekking And Jogging, Perfect For Everyday Walks