Kat Stickler‘s proving single life ain’t all that bad … ’cause she’s living it up months after her breakup from former ‘Bachelor’ star Jason Tartick.

The YouTuber and influencer is regularly hanging out in tropical locales … seen here lying back in an orange bikini on a recent trip down to Mexico.

Orange might be the new black … but, sometimes the old black is just as good — so, Stickler’s also got this tiny bikini which she’s featured in some of her other IG posts.

And, whether on vacation in places like Puerto Vallarta or hanging out in L.A. … Kat’s always ready to pose for a shot — proving all angles are her good angle.

Like we said … Kat and her ex Jason split back in October after about six months. While they’re no longer together, the split appears amicable — ’cause both said they wish the other best after it just didn’t work out.