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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
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Description
Bell K1 Sport White Helmet Medium (58-59)The K1 Sport is a race ready, multi use, full feature helmet with superior ventilation combined with modern styling built for the entry level racer who demands quality at an affordable price. Incorporating a lightweight composite shell, excellent fit, and multiple ventilation options, the all purpose K1 Sport is a perfect choice for racers on a budget or auto enthusiasts just entering the sport. Features Lightweight composite shell Advanced multi
The K1 Sport is a race-ready, multi-use, full-feature helmet with superior ventilation combined with modern styling built for the entry-level racer who demands quality at an affordable price. Incorporating a lightweight composite shell, excellent fit, and multiple ventilation options, the all-purpose K1 Sport is a perfect choice for racers on a budget or auto enthusiasts just entering the sport.
Features
- Lightweight composite shell
- Advanced multi-density, multi-piece liner to maximize energy absorption and impact performance
- Versatile ventilation system featuring lower front chin bar ventilation and upper manual lever air intake vents that can be opened and closed
- Superior ventilation with direct flow chin bar vents, forehead vents, and top vents
- Air Intake, rear spoiler, top gurney, and chin bar gurneys available separately
- Forced air attachments available separately for use with external cooling systems
- M6 terminals for FHR anchor attachment and homologated for use with approved head and neck devices
- Synthetic rubber gasket seal to prevent dirt and water from entering the helmet
- Shield and pivot kit: 287 SRV, SRV-1
- Colors: White, Metallic Black, Safety Orange, Titanium Silver
- Sizes: XXS, XS, S, M, L, XL
Size chart
| Standard Size | Hat Size | Inches | Centimeters |
|---|---|---|---|
| 4XS | 6 3/8 | 20 1/16 | 51 |
| 3XS | 6 1/2 - 6 5/8 | 20 1/2 - 20 7/8 | 52-53 |
| 2XS | 6 3/4 - 6 7/8 | 21 1/4 - 21 5/8 | 54-55 |
| XS | 7 | 22 | 56 |
| S | 7 1/8 | 22 3/8 | 57 |
| M | 7 1/4 - 7 3/8 | 22 3/4 - 23 1/4 | 58-59 |
| L | 7 1/2 | 23 5/8 | 60 |
| XL | 7 5/8 - 7 3/4 | 24 - 24 3/8 | 61-62 |
| 2XL | 7 7/8 - 8 | 24 3/4 - 25 1/4 | 63-64 |
| 3XL | 8 1/8 - 8 1/4 | 25 5/8 - 26 | 65-66 |
| 4XL | 8 3/8 - 8 1/2 | 26 3/8 - 26 3/4 | 67-68 |
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
4.2 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 3
Great formula, but desperate for an unflavored option
Flavor Name: Berry, Size: 30 Servings (8.0 Ounce) (Pack of 1)
I’ve been incorporating Thorne’s Amino Complex into my daily stack, and from a nutritional standpoint, it’s hard to beat. The clinical dosing of essential amino acids is exactly what I’m looking for to support my recovery and fitness goals. Thorne is usually my go-to for purity and quality, and this product is no exception when it comes to the actual ingredients.
However, the flavor profile is a significant drawback. To be blunt: the flavors are just not good. They feel chemically and overly sweet, which makes it a chore to drink rather than a supplement I look forward to.
I would much prefer an unflavored and unsweetened version. Having the option to just mix the raw powders into water or my own beverage without the unnecessary flavorings and sweeteners would be a game-changer. If you’re sensitive to artificial tastes or just prefer a "cleaner" experience, the current options might be a struggle.
Pros:
High-quality amino acid profile.
Trusted brand with great sourcing.
Cons:
Flavors are unpleasant and too sweet.
No "naked" or unflavored option available.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
Taste and Quality are Excellent!
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Thorne has a reputation for high quality products so I thought I’d try this whey protein. It tastes really good! I find it easy to digest, and it dissolves easily. I plan to make this my go-to whey protein.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Definitely sweet but good mixed
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla would be too sweet on it's own for me but with strawberries and spinach it's perfect.
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Reviewed in the United States on February 15, 2025
★★★★★ 1
Horribly ‘weird’ sweet flavor
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Horrible taste - synthetic sweetness than destroys my shakes. I bought Thorne because of its high quality but this is one of their products that won’t work for me. I’m struggling through the jar because it’s too expensive to waste. Using cacao powder, cinnamon & cardamom to try to tone down the overwhelming ‘sweet.’
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Absolutely Great Stuff
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla flavored Protein Powder has to be the Best tasting Protein Powder Ever. Literally delicious. Product satisfies your appetite while supplementing your body with needed protein and nutrients. Combined with gym workouts I’ve noticed firmer muscles. A nice noticeable improvement.
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Reviewed in the United States on May 5, 2026