1. 3-n-1 car seat; The only car seat you will ever need! 2. 5-35 lbs RF; 22-40 FF; 40-100 lbs BPB 3. Exceeds traditional weight limits by 25% or more 4. 5 Point harness with up-front harness adjustment 5. 2-piece push-button harness retainer 6. 3 position buckle strap locations 7. 4 Position headrest adjusts with harness, never needs rethreading! 8. Padded head rest 9. Up-front harness adjustment 10. Infant insert 11. Removable pillow 12. Pivoting armrests 13. Removable cup holder can be used on either side 14. Up front adjust recline mode 15. 2-position belt positioning guides on either side 16. Extra-wide roomy seat with comfort support seat 17. Large belt path openings 18. Use in vehicle with either automotive or UAS belts 19. UAS equipped for use with harness system