WARNING: California’s Proposition 65
Troy Lee Designs 2024 Flowline SE Badge MIPS Adult MTB Helmets
Mips equipped and eMTBrated, 2024 Flowline SE sets the standard for safety within a modern, minimalist design, achieving a fivestar safety rating from Virginia Tech. With 14 vents, an antimicrobial liner, and a Fidlock magnetic buckle system, 2024 Flowline SE is the workhorse of trail helmets.
Each helmet model has small differences in its shape that ultimately affect the fit. For this reason, it is essential to test a helmet before buying it. Test whether it sits on your head properly by putting on the helmet and moving your head to the left and right, as well as up and down while holding the helmet firmly with both hands. If your head can move too freely within the helmet, we recommend that you try a smaller size. If you feel local pressure points, then choose a helmet that is one size larger, or perhaps try on a different model.
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
| HELMET SIZE | HAT SIZE | CM | INCHES |
|---|---|---|---|
| X-SMALL | 6-5/8 to 6-3/4 | 53 to 54 | 20-7/8 to 20-1/4 |
| SMALL | 6-3/4 to 7 | 54 to 56 | 21-1/4 to 22 |
| MEDIUM | 7 to 7-1/4 | 56 to 58 | 22 to 22-3/4 |
| LARGE | 7-1/4 to 7-1/2 | 58 to 60 | 22-3/4 to 23-5/8 |
| X-LARGE | 7-1/2 to 7-3/4 | 60 to 62 | 23-5/8 to 24-1/2 |
| 2X-LARGE | 7-3/4 to 7-7/8 | 62 to 63 | 24-1/2 to 24-7/8 |
| HELMET SIZE | HAT SIZE | CM | INCHES |
|---|---|---|---|
| X-SMALL | 6-5/8 to 6-3/4 | 53 to 54 | 20-7/8 to 20-1/4 |
| SMALL | 6-3/4 to 7 | 54 to 56 | 21-1/4 to 22 |
| MEDIUM | 7 to 7-1/4 | 56 to 58 | 22 to 22-3/4 |
| LARGE | 7-1/4 to 7-1/2 | 58 to 60 | 22-3/4 to 23-5/8 |
| X-LARGE | 7-1/2 to 7-3/4 | 60 to 62 | 23-5/8 to 24-1/2 |
| 2X-LARGE | 7-3/4 to 7-7/8 | 62 to 63 | 24-1/2 to 24-7/8 |
| HELMET SIZE | HAT SIZE | CM | INCHES |
|---|---|---|---|
| X-SMALL | 6-1/2 to 6-5/8 | 52 to 53 | 20.5 to 20.9 |
| SMALL | 6-3/4 to 6-7/8 | 54 to 55 | 21.3 to 21.7 |
| MEDIUM | 7 to 7-1/8 | 56 to 57 | 22 to 22-4 |
| LARGE | 7-1/4 to 7-3/8 | 58 to 59 | 22.8 to 23.2 |
| X-LARGE | 7-1/2 to 7-3/4 | 60 to 62 | 23.6 to 24.4 |
| 2X-LARGE | 7-7/8 to 8-1/8 | 63 to 65 | 24.8 to 25.6 |
| HELMET SIZE | HAT SIZE | CM | INCHES |
|---|---|---|---|
| XS/SM | 6-1/2 to 6-7/8 | 53 to 55 | 21 to 22 |
| MD/LG | 7 to 7-3/8 | 56 to 59 | 22.4 to 23.3 |
| XL/2XL | 7-1/2 to 7-3/4 | 60 to 62 | 23.7 to 24.5 |
| HELMET SIZE | HAT SIZE | CM | INCHES |
|---|---|---|---|
| XS/SM | 6-3/4 to 7 | 54 to 56 | 21.3 to 22 |
| MD/LG | 7-1/8 tp 7-3/8 | 57 to 59 | 22.4 to 23.2 |
| XL/2XL | 7-1/2 tp 7-7/8 | 60 to 62 | 22.6 to 24.8 |
* Headliners and cheekpads can be interchanged within the same EPS size. SE3 cheekpads are interchangable through the entire size range.
| Size | A| CHEST | B| FRONT LENGTH | C| CENTER BACK SLEEVE |
|---|---|---|---|
| Youth XS | 14 | 23 | 22 |
| Youth S | 15.5 | 24 | 24 |
| Youth M | 17 | 25 | 26 |
| Youth L | 18.5 | 26 | 28 |
| Youth XL | 20 | 27 | 30 |
| Small | 21 | 28 | 33 |
| Medium | 22 | 29 | 35 |
| Large | 23 | 30 | 37 |
| X-Large | 24 | 31 | 38 |
| XX-Large | 25.5 | 32 | 39 |
| XXX-Large | 26.5 | 33 | 39 |
| Size | A| CHEST | B| FRONT LENGTH | C| CENTER BACK SLEEVE |
|---|---|---|---|
| X-Small | 20 | 26 | 31 |
| Small | 21 | 27 | 32 |
| Medium | 22 | 28 | 34 |
| Large | 23 | 29 | 36 |
| X-Large | 24 | 30 | 37 |
| XX-Large | 25.5 | 31 | 38 |
* Measurements in inches
| Size | A| CHEST | B| FRONT LENGTH | C| SLEEVE LENGTH |
|---|---|---|---|
| Small | 22 | 24.5 | 15.25 |
| Medium | 23 | 25 | 15.5 |
| Large | 24 | 26 | 15.75 |
| X-Large | 25 | 27 | 16 |
| XX-Large | 26 | 28 | 16.25 |
* Measurements in inches
| Size | CHEST | FRONT LENGTH | CENTER BACK SLEEVE |
|---|---|---|---|
| Small | 19 | 27 | 32 |
| Medium | 20 | 28 | 32.5 |
| Large | 21 | 29 | 33 |
| X-Large | 22 | 30 | 34 |
| Size | CHEST | FRONT LENGTH | CENTER BACK SLEEVE |
|---|---|---|---|
| X-Small | 17 | 24 | 31 |
| Small | 18 | 25 | 31.5 |
| Medium | 19 | 26 | 32 |
| Large | 20 | 27 | 32.5 |
| X-Large | 21 | 28 | 33 |
* Measurements in inches
| Size | A| CHEST | B| FRONT LENGTH | C| SLEEVE LENGTH |
|---|---|---|---|
| Small | 19 | 21.75 | 13.5 |
| Medium | 20 | 22.5 | 14 |
| Large | 21 | 23.25 | 14.5 |
| X-Large | 22 | 24 | 15 |
| Size | A| CHEST | B| FRONT LENGTH | C| SLEEVE LENGTH |
|---|---|---|---|
| Small | 22 | 24.5 | 22.5 |
| Medium | 23 | 25 | 22.75 |
| Large | 24 | 26 | 23 |
| X-Large | 25 | 27 | 23.25 |
| XX-Large | 26 | 28 | 23.5 |
| Size | A| CHEST | B| FRONT LENGTH | C| SLEEVE LENGTH |
|---|---|---|---|
| Small | 17.5 | 26 | 10.5 |
| Medium | 18.5 | 27 | 11 |
| Large | 20 | 28 | 11.5 |
| X-Large | 21.5 | 29 | 12 |
* Measurements in inches
| Size | A| WAIST (relaxed-stretched) | B| INSEAM | C| KNEE WIDTH | D| Leg Length (outseam) |
|---|---|---|---|---|
| 28 | 29 - 33 | 30.5 | 11 | 38.5 |
| 30 | 31 - 34 | 31 | 11.5 | 39.5 |
| 32 | 33 - 36 | 32 | 12 | 40 |
| 34 | 35 - 38 | 32.5 | 12.2 | 41 |
| 36 | 37 - 40 | 33.5 | 12.5 | 41.5 |
| 38 | 39 - 42 | 34 | 13 | 42.5 |
| 40 | 41 - 44 | 35 | 13.5 | 43.5 |
| 42 | 43 - 46 | 36 | 14 | 44 |
| 44 | 45 - 48 | 36 | 14.2 | 44 |
* Measurements in inches
| Size | A| WAIST (relaxed-stretched) | B| INSEAM | C| KNEE WIDTH | D| Leg Length (outseam) |
|---|---|---|---|---|
| 3/4 | 29 - 31 | 29.5 | 19.5 | 36.5 |
| 5/6 | 31 - 33 | 29.5 | 20 | 37 |
| 7/8 | 33 - 35 | 30 | 21 | 38 |
| 9/10 | 35 - 37 | 30.5 | 22.5 | 38.5 |
| 11/12 | 37 - 39 | 31 | 23.5 | 39.5 |
* Low Rise Pants
| Size | A| WAIST (relaxed-stretched) | B| INSEAM | C| KNEE WIDTH | D| Leg Length (outseam) |
|---|---|---|---|---|
| 3/4 | 29 - 31 | 31 | 18 | 41 |
| 5/6 | 31 - 33 | 31.5 | 18.5 | 41.5 |
| 7/8 | 33 - 35 | 32.5 | 19 | 42 |
| 9/10 | 35 - 37 | 32.5 | 19.5 | 42 |
| 11/12 | 37 - 39 | 32.5 | 20 | 42 |
* Measurements in inches
| Size | A| WAIST (relaxed-stretched) | B| INSEAM |
|---|---|---|
| 28 | 27 - 29 | 14.75 |
| 30 | 29 - 31 | 14.75 |
| 32 | 31 - 33 | 14.75 |
| 34 | 33 - 35 | 14.75 |
| 36 | 35 - 37 | 14.75 |
| 38 | 37 - 39 | 14.75 |
| Size | A| WAIST (relaxed-stretched) | B| INSEAM |
|---|---|---|
| 26 | 25 - 27 | 14 |
| 28 | 27 - 29 | 14 |
| 30 | 29 - 31 | 14 |
| 32 | 31 - 33 | 14 |
| 34 | 33 - 35 | 14 |
| 36 | 35 - 37 | 14 | 38 | 37 - 39 | 14 |
| Size | A| WAIST (relaxed-stretched) | B| INSEAM |
|---|---|---|
| 28 | 27 - 29 | 14.25 |
| 30 | 29 - 31 | 14.25 |
| 32 | 31 - 33 | 14.25 |
| 34 | 33 - 35 | 14.25 |
| 36 | 35 - 37 | 14.25 |
| 38 | 37 - 39 | 14.25 |
| Size | A| WAIST (relaxed-stretched) | B| INSEAM |
|---|---|---|
| 28 | 27 - 29 | 13.75 |
| 30 | 29 - 31 | 13.75 |
| 32 | 31 - 33 | 13.75 |
| 34 | 33 - 35 | 13.75 |
| 36 | 35 - 37 | 13.75 |
| 38 | 37 - 39 | 13.75 |
* Measurements in inches
| Size | A| WAIST (relaxed-stretched) | B| INSEAM |
|---|---|---|
| S - 3/4 | 29 - 31 | 10 |
| M - 5/6 | 31 - 33 | 10.5 |
| L - 7/8 | 33 - 35 | 10.6 |
| XL - 9/10 | 35 - 37 | 11 |
| Size | A| WAIST (relaxed-stretched) | B| INSEAM |
|---|---|---|
| S - 3/4 | 29 - 31 | 11 |
| M - 5/6 | 31 - 33 | 12 |
| L - 7/8 | 33 - 35 | 13 |
| XL - 9/10 | 35 - 37 | 13 |
* Measurements in inches
| Size | A| CHEST | B| BOTTOM | C| FRONT LENGTH | D| SLEEVE LENGTH |
|---|---|---|---|---|
| Small | 23.6 | 21.25 | 26.4 | 24.5 |
| Medium | 24.4 | 22 | 27.5 | 25.25 |
| Large | 25.2 | 22.75 | 28.75 | 26 |
| X-Large | 26 | 23.6 | 29 | 26.75 |
| XX-Large | 26.7 | 24.4 | 30.25 | 27.5 |
* Measurements in inches
| Size | 6” ABOVE MID PATELLA | MID - PATELLA | 6” BELOW MID PATELLA |
|---|---|---|---|
| Small | 14.5 - 17 | 11.5 - 13 | 11.5 - 13 |
| Medium | 17 - 19.5 | 13 - 15 | 13 - 14.5 |
| Large | 19.5 - 22.5 | 15 - 17 | 14.5 - 16.5 |
| X-Large | 22.5 - 25.5 | 17 - 19 | 16.5 - 18.5 |
| XX-Large | 25.5 - 30 | 19 - 22 | 18.5 - 22 |
* Measurements in inches
| Size | LOWER THIGH | TOP CALF | USER WEIGHT (LBS) |
|---|---|---|---|
| XSMALL | 15 - 17 | 13 - 14.5 | 70 - 90 |
| SMALL | 16 - 18 | 14 - 16 | 90 - 140 |
| MEDIUM | 16.5 - 18.5 | 14.5 - 17 | 140 - 180 |
| LARGE | 18 - 21 | 15 - 18 | 180 - 220 |
* Measurements in inches
| Size | LLOWER THIGH(3” above knee) | MID CALF(6” below knee) | USER WEIGHT (LBS) |
|---|---|---|---|
| XSMALL | 15 - 17 | 13 - 14 | 70 - 90 |
| SMALL | 16 - 18 | 13 - 15 | 90 - 140 |
| MEDIUM | 16.5 - 18.5 | 14 - 15.5 | 140 - 180 |
| LARGE | 18 - 21 | 14.5 - 17.5 | 180 - 220 |
* Measurements in inches
| Size | LLOWER THIGH(3” above knee) | MID CALF(6” below knee) | USER WEIGHT (LBS) |
|---|---|---|---|
| XSMALL | 5 - 6.5 | 9.5 - 11.5 | 70 - 90 |
| SMALL | 5.5 - 7 | 10 - 12 | 90 - 140 |
| MEDIUM | 6.5 - 8 | 10.5 - 12.5 | 140 - 180 |
| LARGE | 7 - 8.5 | 10.5 - 13 | 180 - 220 |
* Measurements in inches
| Size | LLOWER THIGH(3” above knee) | MID CALF(6” below knee) | USER WEIGHT (LBS) |
|---|---|---|---|
| XSMALL | 5.5 - 6.5 | 9.5 - 11 | 70 - 90 |
| SMALL | 6 - 7 | 10 -11.5 | 90 - 140 |
| MEDIUM | 6.5 - 8 | 10.5 - 12 | 140 - 180 |
| LARGE | 7.5 - 9 | 11 - 13 | 180 - 220 |
* Measurements in inches
| Size | YOUTH | SMALL/MEDIUM | LARGE/XLARGE |
|---|---|---|---|
| WAIST CIRCUMFERENCE | 20 - 28 | 28 - 34 | 34 - 40 |
* Measurements in inches
| Size | WAIST CIRCUMFERENCE |
|---|---|
| YOUTH M | 24 - 26 |
| YOUTH L | 26 - 28 |
| XSMALL | 28 - 30 |
| SMALL | 30 - 32 | MEDIUM | 32 - 34 |
| LARGE | 34 - 36 |
| XLARGE | 36 -38 |
* Measurements in inches
| Size | YOUTH M | YOUTH L | XSMALL | SMALL | MEDIUM | LARGE | XLARGE |
|---|---|---|---|---|---|---|---|
| A.| INSEAM | |||||||
| LPS 7605 | 7.75 | 8 | 8.25 | 8.5 | 9 | 9.25 | 10 |
| LPS 5605 | 7.5 | 8 | 8.5 | 9 | 9.25 | 9.5 | 10 |
| LPS 4600HW | 7.5 | 8 | 8.25 | 8.5 | 9 | 9.5 | 10 |
| LPS 3600 | 6.5 | 7 | 7.5 | 8 | 8.25 | 8.5 | 9 |
| LPS 1600 | 7 | 7.5 | 8 | 8.25 | 8.75 | 9 | 9.5 |
| LPS 1600G | - | - | - | 8 | 9 | 10 | - |
* Measurements in inches
| Size | WAIST CIRCUMFERENCE |
|---|---|
| YOUTH M | 26 - 27 |
| YOUTH L | 28 - 29 |
| YOUTH XL | 30 - 32 |
| SMALL | 34 - 35 | MEDIUM | 36 - 38 |
| LARGE | 40 -42 |
| XLARGE | 44 - 46 |
* Measurements in inches
| Size | WAIST CIRCUMFERENCE | RIDER’S HEIGHT |
|---|---|---|
| YOUTH | 28 - 32 | 4’ - 5.2 |
| MEDIUM | 34 - 38 | 5’ - 5.8’ |
| LARGE | 40 - 45 | 5.6’ - 6.2’ |
* Measurements in inches
New or Brand New - Brand new item in original packaging (original manufacturer's warranty may apply).
Refurbished - Professionally restored and in perfect working condition. Original packaging may be missing or slightly damaged.
Used - Item has seen limited use but remains in good working condition. May show some limited signs of wear with small scratches or cosmetic blemishes. May arrive with damaged packaging or be repackaged.
Refurbished, Without Tags - Same as refurbished. Item may arrive with mising labels or tags.
Refurbished, Last Call - Same as refurbished. Last call or closeout item.
| Product Image | Color | Size | SKU | Availability | Price |
|---|---|---|---|---|---|
 |
Light Grey / Charcoal | X-Small/Small | 110568031 | In Stock | $159.99 |
|
Light Grey / Charcoal | Medium/Large | 110568033 | In Stock | $159.99 |
|
Light Grey / Charcoal | X-Large/2X-Large | 110568035 | In Stock | $159.99 |
 |
Olive / Indigo | X-Small/Small | 110568051 | In Stock | $159.99 |
|
Olive / Indigo | Medium/Large | 110568053 | In Stock | $159.99 |
|
Olive / Indigo | X-Large/2X-Large | 110568055 | In Stock | $159.99 |
 |
Tarmac / Oak | X-Small/Small | 110568041 | Out of Stock | $159.99 |
|
Tarmac / Oak | Medium/Large | 110568043 | In Stock | $159.99 |
|
Tarmac / Oak | X-Large/2X-Large | 110568045 | In Stock | $159.99 |
