Always wore mtb shorts off road and earlier this year bought my first lycra shorts to ride my hybrid as the daily miles were increasing. Bought a Synapse late last year and added to my short collection but starting losing weight and the shorts were loose. On the advice of my LBS (and a good discount) bought cannondale bibs. Found it to be a big difference in holding the chamois in place, not tight around the waist and overall I found them to be more comfortable. Have bought a second pair (Santini) and will not go back to shorts. I also found that the waist size is not as important as your height as it relates to the straps. I'm 5'10 and now down to 182, waist 33 having started at 205 and 37 waist and wearing medium bibs.