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Alpinestars AST-1 V2 Waterproof Motorcycle Textile Pants

Average rating of 4.9 out of 5 stars

(11)
Description

Alpinestars AST-1 V2 Waterproof Motorcycle Textile Pants

The AST-1 v2 Waterproof Pants are excellent all-weather textile pants with a solid, waterproof membrane and class-leading inner protection.

Features:

  • Multi-material main shell construction for the optimal combination of durability, protection and low weight.
  • Nucleon Flex Plus knee protectors to protect against impact.
  • The inner knee compartment allows the protection to be adapted to different leg lengths.
  • Solid waterproof and breathable membrane for effective performance in all weather.
  • Ventilation opening for a high airflow.
  • Pre-curved leg construction for improved fit and comfortable riding position.
  • zippered pockets
  • Reflective decorations.
  • Belt with velcro to adjust the waist for a precise fit.
  • Waist connection zipper for secure combination with the Alpinestars motorcycle jacket.
  • High quality YKK zippers for durability.

Specifications:

  • Nucleon Flex Plus knee protectors (EN1621-1: 2012)
  • Prepared for Bio-Flex hip protectors (sold separately)
  • protective motorcycle riding garment A-Class
Color: black
Size: Long L
Pants Type: Pants
Sport: Motorcycle
Features: Knee protectors included, Waterproof
Gender: Men
Material: Textile
Application area: Touring, Urban / City
Material composition: 84% Polyester 16% Polyamide

Size table for Alpinestars AST-1 V2 Waterproof Motorcycle Textile Pants:

Measurements in:
cm
Size Waist (cm) Hip (cm) Thigh (cm) Inseam (cm) Body Height (cm)
2XS 63 - 69 77 - 83 48 - 50,5 77 - 78,5 156 - 162
XS 69 - 75 83 - 89 50,5 - 53 78,5 - 80 162 - 168
S 75 - 81 89 - 95 53 - 55,5 80 - 81,5 168 - 174
M 81 - 87 95 - 101 55,5 - 58,5 81,5 - 83 174 - 180
L 87 - 93 101 - 107 58,5 - 61 83 - 84,5 180 - 188
XL 93 - 99 107 - 112,5 61 - 63,5 84,5 - 86 188 - 191
2XL 99 - 105 112,5 - 118 63,5 - 65 86 - 87,5 191 - 195
3XL 105 - 111 118 - 123,5 65 - 66,5 87,5 - 89 191 - 195
4XL 111 - 117 123,5 - 129 66,5 - 68 89 - 90,5 195 - 199
5XL 117 - 123 129 - 134,5 66,5 - 68 89 - 90,5 195 - 199
6XL 123 - 129 134,5 - 140 66,5 - 68 89 - 90,5 195 - 199

How to measure your height:

Sizing Info
1 Waist

Measure your waist at the narrowest part of your torso, usually just above your belly button. Stand upright and keep breathing normally while you place the tape measure horizontally around your body. Make sure the tape is not digging in but also not too loose, so you get a realistic measurement.

2 Hips

Measure your hips at the widest part of your buttocks. Stand upright with your feet about hip-width apart and place the tape measure horizontally around your body. Make sure the tape stays at the same height all the way around and does not slip up or down.

3 Inseam

Measure your inseam from the crotch down along the inside of your leg to the sole of your foot. Stand upright, ideally without shoes and with your legs slightly apart. Run the tape measure straight down and make sure it does not slip.

4 Thigh

Measure your thigh at the fullest part. Wrap the tape loosely around your leg without pulling it tight. For an accurate result, stand relaxed and distribute your weight evenly on both legs.

Related products

Alpinestars Bioflex Hip Protectors Main article Figure 1
Alpinestars Bioflex Hip Protectors
from $26.94

Average rating of 4.8 out of 5 stars

(12)

Complementary products

Reviews

11 out of 11 ratings

Average rating of 4.9 out of 5 stars


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1 - 5 out of 11 reviews

29 May 2025 23:15

Rated 5 out of 5 stars

Great touring and urban city pants

Great pants, as usual, Alpinestars product quality is amazing. Comfortable at +5C and 150kmh and till +15C in the city at 50-80kph. Note that even though pants are breathable (really well), vents are limited to 2 pockets and 2 above the knees, so if your engine gets 103C+ and city only, including traffic, then is OK for cool weather, otherwise for long-runs - amazing.

2 January 2023 16:49

Rated 5 out of 5 stars

Good trousers, nice green colour.

Beware odd sizing; 4XL works out to be 38", something I've never experienced before. But, they're quality trousers. You'll need long johns underneath in winter, but they're totally waterproof with no draughts, if you seal the Velcro tight to your boots.

5 February 2022 07:39

Rated 5 out of 5 stars

Habe die Hose gleich bei Schnee und Minusgraden ausprobiert und die Hose ist absolut wasserdicht und hält schön warm, musste sogar zwischenzeitlich mal die Lüftungsschlitze öffnen. Ich habe die Hose nach der Tabelle bestellt und sie passt perfekt.

20 January 2022 10:25

Rated 5 out of 5 stars

Buena calidad

Uno de los problemas de comprar sin probar el producto es tallaje. En este caso, totalmente acertado. Me ha gustado sus acabados y detalles. Una vez puestos son muy comodos. Los probé un dia de lluvia y son totalmente impermeables. Satisfecho con la compra.

3 December 2021 07:43

Rated 5 out of 5 stars

Klein aber oho

Die Hose fällt zwar sehr klein aus (habe noch nie 3XL bestellen müssen) - also mind. 1 Größe größer bestellen! - aber trägt sich sehr bequem und schützt gut vor der Herbstkälte auf dem Roller.

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