Gregory Optic 58

small medium large Weight 2.4 lbs / 1.09 kg 2.52 lbs / 1.14 kg 2.7 lbs / 1.22 kg Volume 55L / 3356 cu in 58L / 3539 cu in 61L / 3722 cu in Fits Torso 16-18 in / 40.6-45.7 cm 18-20 in / 45.7-50.8 cm 20-22 in / 50.8-55.9 cm Fits Hips/Waist 27-45 in / 68.5-114.3 cm 28- 48 in / 71.1-121.9 cm 30-53 in / 76.2-134.6 cm Rain Cover Weight 0.2 lbs / 91 g 0.21 lbs / 95 g 0.21 lbs /95 g Stripped Weight 2.29 lbs / 1.04 kg 2.42 lbs / 1.10 kg 2.27 lbs / 1.17 kg Max Carry Weight 35 lbs / 16 kg Packed Dimensions 26 x 12.5 x 11 in / 66 x 31.8 x 27.9 cm 28 x 12.5 x 12 in / 71.1 x 31.8 x 30.5 cm 30 x 12.5 x 12.5 in / 76.2 x 31.8 x 31.8 cm