Zip-front sports bra provides medium support, made of breathable, 4-way stretch fabric featuring padded cups, smooth elastic straps, mesh panels, and scoop back styling Engineered to fit tight, hold everything in place, and minimize bounce Core 10 recommends sizing up in the band Front zipper locks when pointed down for a secure fit as you work out Core 10 recommends sizing up in cup size Model 1 is 5'10" with 34" bust, wearing size 34B and Model 2 is 5'11" with 38" bust, wearing size 40DD