Nuna's best-selling collection of infant car seats include the Nuna PIPA, PIPA Lite and PIPA Lite LX.
The PIPA Lite and Lite LX are the lightest car seats in the world, weighing 6.7 pounds and 7.1 pounds, respectively, while the original Nuna PIPA is also light at 7.9 pounds.
All three car seats use the same base, which includes a load leg, an industry-leading safety feature that stabilizes the base in the event of a crash.
See this post for a comparison of the Nuna PIPA vs. PIPA Lite vs. PIPA Lite LX.
All three car seats can be used with strollers from Nuna and several other brands. See the strollers compatible with the Nuna PIPA series here.