Workout

Set 
10 x 100 on 1:40
…25 choice kick/75 choice swim
…work the 25 kick
…moderate aerobic pace on 75

Set
4 x 200 divided thus:
150 free on 2:30 => 50 on :30
…moderate and aerobic 150
…just make the interval on the 50
2 x 25 kick/swim choice on :45

Set
8 x 25 on :30
…odds breast kick
…evens full stroke breast

Cool down 200 ez