Keyword targeting related question

[OceanKing]

Hello,

assume i have aggregated these keywords from a keyword finder.

Mens Shirt
2500 Search Volume/m

Shirt Mens
2500 Search Volume/m

now which keyword i should pic here, coz they looks like duplicate.

 

[Serp Solace]

I'd go with mens shirt. Besides if you have a competent writer, you should start to rank for long tail keywords anyway - Provided your on page is ace.