Despite spending a lot of time carefully taking my measurements and reviewing the sizing chart on the Nike site as other reviewers suggested, I ordered a size 4. I''m 5''5" and 119lbs. I''m bigger on the bottom, but my hip measurement put me in the range of size 4, so I ordered it, thinking that it''s better to have a lap swimming suit too tight than too big. It turned out to be too small on the top and bottom, and actually, I don''t think going up a size would have completely solved the problem- it seemed like the bottoms weren''t cut for someone with a little extra on the backside. I ended up ordering the TYR Solid Diamondfit Workout Bikini in size small, and it fits perfectly. Too bad, because the Nike suit in red was pretty!

I bought this for my girlfriend, and it fits her perfectly, is very comfortable according to her, and according to me, looks great !

I have been using the Nike core two piece to swim laps for fifteen years.  The suit holds up well for about 3-4 months, swimming 3-4 times per week.  I usually rinse it with cold water after swimming to help alleviate chlorine damage.  I wear a size 6 in pants, 27" waist, 34B cup and the size 8 in this suit fits very well.  I am 5''7" and 130 lbs.  Perfect for lap swimming, doesn''t budge.

This is a great swim suit by Nike.  It fits well and the quality stands the time. Highly recommend.

I bought this for my daughter .  She is a size 2 and the 4 swimsuit was too small.  She loves the style of this suit, but is concerned about not heavy enough lining in the top.  Have sent the suit back.

I bought this to swim laps, but I could tell it wouldn''t work right away.  Material was way too thin and a bit skimpy for lap swimming.  Felt small too - I ordered size 10 (5''5" and 130 lbs) and it seemed a bit small.  Loved the color.  Would maybe wear it just to hang out by the pool but not to actually swim laps in . . .