Hot Figure 4
- Pure Yoga
203 E. 86th St., nr. Third Ave.; 212-360-1888; $25 per class
Pure Yoga’s Figure 4 class was already one of the hardest of the ballet-bar bunch. Now they’re upping it, teaching in a 105-degree room.
113 Fourth Ave., at 12th St.; 212-533-0001; from $80 for monthly membership
Though it strays from the classic mat Pilates form, this hourlong midsection-focused class taught in a 100-degree room will likely leave your face red for an hour and your abs sore for days.
Hot Gravity Surfing
- David Barton
215 W. 23rd St., nr. Seventh Ave.; 212-414-2022; monthly membership from $128
This Vinyasa-style class taught in a 100-degree room incorporates the inversion-heavy sequences that flex the same muscles as you would while hanging ten.
- Tracy Anderson
24 Hubert St., nr. Greenwich St., third fl.; 212-965-1408; membership rates upon request
The full-body workout incorporates resistance bands and an 86-degree room to instantly warm up those less-worked muscles.
Silent D.J. Hot 90
- Sacred Brooklyn
197 Clifton Pl., nr. Bedford Ave., Bed-Stuy; 347-715-4112; $20 per class
This freestyle session for advanced hot yogis is sound- tracked by a communal iPod.