1) He strolled through the park, completely hatless despite the sun beating down.

2) The man looked oddly vulnerable walking hatless in the rain.

3) She felt exposed and self-conscious being the only one hatless at the party.

4) The hatless cowboy squinted against the harsh desert sun.

5) The queen's guard never appeared hatless while on duty.

6) Despite the chilly weather, he remained hatless and shrugged off any offers of headwear.

7) The hatless runner felt the wind rush through his hair as he picked up speed.

8) The professor entered the lecture hall, his bald head shining under the lights when hatless.

9) The hatless hiker realized too late the importance of sun protection on the mountain trek.

10) In old photographs, he always stood out as the only hatless person in the crowd.

11) Sorry, but 'Hatless' is not a common word, and no example sentences using it are available.