CHEST: Measure around the widest part of your chest, keeping the measuring tape horizontal.
WAIST: Measure around the narrowest part of your waist.
HIPS: Measure around the widest part of your hips.
SLEEVE LENGTH: Measure from the middle of the base of your neck, down your arm and to the wrist.
WOMEN'S OUTERWEAR & TOP SIZING
Size
Chest (in)/
Chest (cm)
Waist (in)/
Waist (cm)
Hip (in)/
Hip (cm)
Arm Length (in)/
Arm Length (cm)
XS
32 - 34/
81.28 - 86.36
25 - 28/
63.50 - 71.12
34 - 37/
86.36 - 93.98
30/
76.20
SM
34 - 36/
86.36 - 91.44
28 - 30/
71.12 - 76.20
37 - 39/
93.98 - 99.06
31/
78.74
MD
36 - 38/
91.44 - 96.52
30 - 31/
76.20 - 78.74
39 - 41/
99.06 - 104.14
31/
78.74
LG
38 - 40/
96.52 - 101.60
31 - 34/
78.74 - 86.36
41 - 43/
104.14 - 109.22
32/
81.28
XL
40 - 43/
101.60 - 109.22
34 - 37/
86.36 - 93.98
43-46/
109.22-116.84
33/
83.82
How to Measure:
CHEST: Measure around the widest part of your chest, keeping the measuring tape horizontal.
WAIST: Measure around the narrowest part of your waist.
HIPS: Measure around the widest part of your hips.
SLEEVE LENGTH: Measure from the middle of the base of your neck, down your arm and to the wrist.
Ultimate Direction Men's/Unisex Running Vests
SIZE
VEST SIZING (UNISEX)
SM
23 - 32 inch / 58 - 81 cm
MD
30 - 39 inch / 76 - 99 cm
LG
37 - 46 inch / 94 - 117 cm
XL
44 - 52 inch / 112 -132 cm
How to Meaure:
RIBS: Measure around the bottom of your ribs.
Ultimate Direction Women's Running Vestas
SIZE
VEST SIZING (UNISEX)
SM
21 - 36 inch / 53 - 91 cm
MD
24 - 40 inch / 61 - 102 cm
LG
28 - 42 inch / 71 - 107 cm
XL
38 - 46 inch / 97 -117 cm
How to Meaure:
RIBS: Measure around the bottom of your ribs.
Ultimate Direction TRAIL VEST / HIGHLAND VEST SIZE CHART
SIZE
VEST SIZING (UNISEX)
XS/SM
20 - 40 inch / 50.8 - 101.6 cm
MD/LG
30 - 46 inch / 76.2 - 116.84 cm
How to Meaure:
RIBS: Measure around the bottom of your ribs.
Ultimate Direction MEN'S/UNISEX PACKS
Size
Torso (in)/Torso (cm)
Chest (in)/Chest (cm)
SM/MD
17 / 43.18
26 - 39 / 66.04 - 99.06
MD/LG
18.5 / 46.99
36 - 48 / 91.44 - 121.92
How to Measure:
TORSO: Measure the distance between the top edge of the shoulders or C7 vertebrae (the one that protrudes when looking down) to the top crest of the hip bone (pelvis).
CHEST: Measure around the widest part of your chest, keeping the measuring tape horizontal.
Ultimate Direction Fastpackher
Size
Torso (cm)
Chest (cm)
SM/MD
36.83
60.96 - 95.25
MD/LG
40.64
88.90 - 106.68
How to Measure:
TORSO: Measure the distance between the top edge of the shoulders or C7 vertebrae (the one that protrudes when looking down) to the top crest of the hip bone (pelvis).
CHEST: Measure around the widest part of your chest, keeping the measuring tape horizontal.
Ultimate Direction Fastpackher 2.0
Size
Chest (in)
X/S
21-47
M/L
23-49
How to Measure:
TORSO: Measure the distance between the top edge of the shoulders or C7 vertebrae (the one that protrudes when looking down) to the top crest of the hip bone (pelvis).
CHEST: Measure around the widest part of your chest, keeping the measuring tape horizontal.
Ultimate Direction ULTRA GAITER
Size
Men's Shoes
Women's Shoes
SM
US 5-10 EU 37-43
US 7-12 EU 37-43
MD
US 8-11 EU 41-44
US 10-13 EU 41-44
LG
US 9-13 EU 42-47
US 11-14 EU 42-47
Ultimate Direction Socks
Shoes Size (US Size)
S/M
L/XL
Women's
US 6-10
US 11-14
Men's
US 7-9
US 10+
Ultimate Direction Women's Bottom Sizing
SizeSize
Waist (in)Waist (cm)
Hip (in)Hip (cm)
XSXS
24 - 2660.96 - 66.04
34 - 3686.36 - 91.44
SMSM
27 - 2868.58 - 71.12
37 - 3993.98 - 99.06
MDMD
29 - 3173.66 - 78.74
39 - 4199.06 - 104.14
LGLG
32 - 3481.28 - 86.36
41 - 43104.14 - 109.22
How to Measure:
WAIST: Measure around the narrowest part of your waist, keeping the measuring tape horizontal.
HIPS: Measure around the widest part of your hips.
Ultimate Direction Body Bottle 500 S
2026-08-102026-08-17
THE EASIEST AND LIGHTEST WAY TO CARRY YOUR FLUIDS
FEATURES
The Body Bottle is the easiest and lightest way to carry your fluids
Wide design with wide fill 42mm cap lets you easily fill with ice and drink mixes
Shrinks as you drink to eliminate sloshing and collapses fully to a tiny size when empty
Made with ultra-durable, abrasion resistant TPU material and has Hydrapak's Beyound Lifetime Guarantee
Fits any of our UD Vests, Vestas, or Fastpacks
High-flow bite valve auto-seals after each sip, eliminating annoying drips and customizable 4" drink tube (can be cut to perfect size for your needs)
Can be frozen or filled with hot water (max temp 60'C / 140'F)
Safe and reliable, 100% BPA & PVC free
SPECS
Weight: 1.4 oz / 40 g
Volume: 500 ml / 17 oz
MATERIALS
Made with ultra-durable, abrasion resistant TPU material and has Hydrapak's Beyound Lifetime Guarantee