I have several Centaur Turbo Blankets that are 1680D - sadly they are not making that blanket anymore- so I purchased the 1200D Turnout blanket-- luckily they did not change the fit. Seriously one of the best fitting blankets I have had. I love the blankets and coolers this company makes. I have warmblood horses ranging in size from 72-84 and this is definitely one of the best fitting blankets I have found. The 1680D blankets have had up great-- hoping the 1200D will too.