I pack my husband's Velo 111 with a ginormous PD logo & a PD143 in a W-8. It's snug but not slow down a reserve deployment tight. A W-5 would be a wrestling match, I think. My 2nd set up is a W-5 with a Sabre2 107 with Dacron & a PD106 & while it doesn't fall in, it looks good & filled out. So...guess it depends on what size reserve you're putting in & how fat you want the rig to look. Do call Sunrise and ask though...there were a bunch of size changes from 2005-2009 & it drove me craaaaazy.