What is a women's size versus men's?

Tech Specs:

Material:

Urethane foam 

Inflated Size:

[Long] 25 x 77 x 1.5in (63 x 196 x 3.8cm); [Regular] 20 x 72 x 1.5in (51 x 183 x 3.8cm); [Short] 20 x 47 x 1.5in (51 x 119 x 3.8cm); [Women's Long] 20 x 72 x 1.5in (51 x 183 x 3.8cm); [Women's Regular] 20 x 66 x 1.5in (51 x 168 x 3.8cm) 

Rolled Size:

[Long] 13 x 5.1in (33 x 13cm); [Regular] 11 x 4.8in (28 x 12cm); [Short] 11 x 4in (28 x 10cm); [Women's Long] 11 x 5.1in (28 x 13cm); [Women's Regular] 11 x 4.8in (28 x 12cm) 

R Value:

3.2 

Weight:

[Long] 2lb 1oz (936g); [Regular] 1lb 8oz (680g); [Short] 1lb 1oz (482g); [Women's Long] 1lb 10oz (740g); [Women's Regular] 1lb 8oz (680g) 

Recommended Use:

Lightweight, minimalist backpacking 

Warranty:

Lifetime 

Country of Origin:

United States