yatra nitya-vayo-rūpāḥ
śyāmā viraja-vāsasaḥ
bhrājante rūpavan-nāryo
hy arcirbhir iva vahnayaḥ
yatra - in that city; nitya-vayaḥ-rūpāḥ - who were ever beautiful and young; śyāmāḥ - possessing the quality of śyāmā; viraja-vāsasaḥ - always dressed with clean garments; bhrājante - glitter; rūpa-vat - well decorated; nāryaḥ - women; hi - certainly; arcirbhiḥ - with many flames; iva - like; vahnayaḥ - fires.
Śrīla Viśvanātha Cakravartī Ṭhākura gives a hint of the quality of the śyāmā woman.
śīta-kāle bhaved uṣṇā
uṣma-kāle suśītalāḥ
stanau sukaṭhinau yāsāṁ
tāḥ śyāmāḥ parikīrtitāḥ
A woman whose body is very warm during the winter and cool during the summer and who generally has very firm breasts is called śyāmā.