Summer Tech Performance Sport Boxer
Alpinestars Summer Tech Performance underwear forms an effective base layer keeping you cool and comfortable under your suit during warm weather riding.
Features:
Have a functionality, fit, or otherwise product-specific question about the Alpinestars Summer Tech Performance Sport Boxer? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

| Euro | USA | Alpha | US Pant Size | Waist (cm) | Hip (cm) | Thigh (cm) | Inseam (cm) | Height (cm) |
|---|---|---|---|---|---|---|---|---|
| 42 | 32 | 2XS | 26 | 68-72 | 83-87 | 50-51 | 73-74 | 159-163 |
| 44 | 34 | 2XS-XS | 28 | 72-76 | 87-91 | 52-53 | 75-76 | 164-167 |
| 46 | 36 | XS-SM | 30 | 76-80 | 91-95 | 54-55 | 77-78 | 168-171 |
| 48 | 38 | SM-MD | 32 | 80-84 | 95-99 | 56-57 | 79-80 | 172-175 |
| 50 | 40 | MD | 34 | 84-88 | 99-103 | 58-59 | 81-82 | 176-179 |
| 52 | 42 | LG | 36 | 88-92 | 103-107 | 60-61 | 83-84 | 180-183 |
| 54 | 44 | XL | 38 | 92-96 | 107-111 | 62-63 | 85-86 | 184-187 |
| 56 | 46 | XL-2XL | 40 | 96-100 | 111-115 | 64-65 | 87-88 | 188-191 |
| 58 | 48 | 2XL | 42 | 100-104 | 115-119 | 66-67 | 89-90 | 192-195 |
| 60 | 50 | 3XL | 44 | 104-108 | 119-123 | 68-69 | 89-90 | 192-195 |
| 62 | 52 | 3XL-4XL | 46 | 108-112 | 123-127 | 70-71 | 91-92 | 196-199 |
| 64 | 54 | 4XL | 48 | 112-116 | 127-131 | 72-73 | 91-92 | 196-199 |
Note: Alpinestars sizes displayed on our website are in Euro sizing, use the chart above to convert your standard US size to Euro.
Sizing information is provided by the manufacturer and does not guarantee a perfect fit.
Click here to see the full Alpinestars Size Chart| Product Style | RevZilla SKU ID | Manufacturer Product # | Availability |
|---|---|---|---|
| Black / XS-SM | 505444 | 475289-10-XS/S | In Stock: Ships within 24 hours |
| Black / MD-LG | 505445 | 475289-10-M/L | Out of Stock |