The slim fit Caliber jeans are constructed from a single layer 12oz stretch Cordura® denim main fabric, that provides exceptional protection without sacrificing any comfort. Internally, Nucleon Flex Plus CE Level 1 rated armor provides impact protection both on the knees, and on the hips. The jeans have built in pockets to fit separately purchased Bioflex hip protectors, delivering an overall CE Level A-rated garment. The Caliber’s military-inspired cargo design means the tech riding jeans can be worn with a variety of urban styles, offering an excellent protective tech denim pant for riders with a unique utilitarian and functional styles.
Features:
•Slim fit – tapered look.
•Ergonomic combat fit designed for motorcycling.
•Monolayer stretch Cordura® denim fabric chassis.
•Combat pants style, with multifunctional, practical side flap pockets.
•Protective regular waist.
•Durable garment for all-day-long use.
•Logo personalization on knees and back pocket.
Protection:
•According to European statutory law the CE mark is a conformity requirement for the marketing of this product. The following standards apply to this product:
•Fully riding garment to CE – Category II EN 17092-4:2020 – A class.
•CE Level 1 EN 1621-1:2012 Alpinestars Nucleon Flex Plus knee protectors.
•CE Level 1 EN 1621-1:2012 Bioflex hip protectors available as an optional upgrade.
•CORDURA® is a trademark of INVISTA.
Men's Sizes - Alpinestars Jeans
UK Size |
EU Size |
S/M/L |
Waist (cm) |
Leg (cm) |
Hips (cm) |
24 |
40 |
2XS |
64 - 68 |
71 - 72 |
79 - 83 |
26 |
42 |
2XS/XS |
68 - 72 |
73 - 74 |
83 - 87 |
28 |
44 |
XS |
72 - 76 |
75 - 76 |
87 - 91 |
30 |
46 |
S |
76 - 80 |
77 - 78 |
91 - 95 |
32 |
48 |
S/M |
80 - 84 |
79 - 80 |
95 - 99 |
34 |
50 |
M/L |
84 - 88 |
81 - 82 |
99 - 103 |
36 |
52 |
L |
88 - 92 |
83 - 84 |
103 - 107 |
38 |
54 |
L/XL |
92 - 96 |
85 - 86 |
107 - 111 |
40 |
56 |
XL/2XL |
96 - 100 |
87 - 88 |
111 - 115 |
42 |
58 |
2XL |
100 - 104 |
89 - 90 |
115 - 119 |
44 |
60 |
3XL |
104 - 108 |
89 - 90 |
119 - 123 |
46 |
62 |
3XL/4XL |
108 - 112 |
91 - 92 |
123 - 127 |
48 |
64 |
4XL |
112 - 116 |
91 - 92 |
127 - 131 |

Standing straight, measure around your waist at the height of your 'belly button', making sure the tape measure feels comfortable, not overtight or too loose.
Standing straight, measure around your waist at the height of your 'belly button', making sure the tape measure feels comfortable, not overtight or too loose.
Outseam
Motorcycle trousers are designed to sit higher than everyday trousers. Standing straight up, measure from your waist (i.e 'belly button' as above) down to the centre of your ankle.
Inseam
Measure from the lowest point between your legs to the centre of your ankle.