Have an all black Malinois mix who can go forever, even if she’s beginning to overheat. Got the swamp cooler jacket since it hand the most coverage up top. The length of XL was perfect in length, but too big in the chest. M is her normal harness size, fit nice and snug in her chest but the top was too short in terms of covering her long body. Settled on L as a compromise. Would like to see an update with 3 adjustable connection points; around the collar and around chest (instead of just one around belly).
Despite one adjusting point, this jacket is still amazing. Even helped keep the pup cool while road tripping through the desert.