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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
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Description
Sparco Seat QRT-R X Black (008012XNR)QRT R The QRT R was the first seat to feature Sparcos patented QRT ultra light technology. The QRT R is the lightest large size fiberglass seat on the market. It is lighter than some of the competitors medium size seats. The QRT R was specifically designed for a large driver and it fits a 36 waist driver comfortably. The QRT R is unique because it was designed to fit a larger driver but has excellent fitment into smaller cockpits The QRT R requires
QRT-R
The QRT-R was the first seat to feature Sparco’s patented QRT ultra-light technology. The QRT-R is the lightest “large” size fiberglass seat on the market. It is lighter than some of the competitors “medium” size seats. The QRT-R was specifically designed for a large driver and it fits a 36” waist driver comfortably. The QRT-R is unique because it was designed to fit a larger driver but has excellent fitment into smaller cockpits The QRT-R requires the special QRT-R Side mounts (#600QRT) which allows the seat to be racked back for a comfortable seating position. The QRT-R is FIA approved.
SIZING
Large – up to a 36” waist (pants size)
WHAT IS QRT
Designed and developed at the Sparco OEM Composite Laboratory in Italy, QRT is a patented state-of-the-art technical process, based on aerospace technologies. QRT creates an unparalleled mechanical strength to weight ratio. This innovative production method generates the lightest fiberglass composite seat shells currently on the market; in fact, it guarantees a reduction in total weight of up to 30% compared to traditional production methods. The QRT seats approach the weight of a comparable carbon fiber seat at a lower price point.
- QRT Ultralight fiberglass composite shell
- Excellent fitment into small cockpits
- Large size driver fitment
- Excellent ergonomics
- Fire retardant fabric
- Special non-slip fabric
- FIA approved
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025