Men's Harmless Green Shirt Size-22 The Rover Vest allows you

The Rover Vest allows you to change the temperature on-the-fly wirelessly

Straps on Arms & Hips

SIZE HAT HEAD(CM) HEAD(IN) Medium 7 1/8 - 7 1/4 57 - 58 22 3/8- 22 3/4 Large 7 3/8 - 7 1/2 59 - 60 23 1/8 - 23 1/2 X-Large 7 5/8 - 7 3/4 61 - 62 24 -24 3/8 2X-Large 7 7/8 - 8 63 - 64 24 3/4 - 25 1/8

or it can be removed completely

Men's Harmless Green Shirt Size-22 The Rover Vest allows youFeatures 6 oz. 100% Preshrunk Cotton with screen printed image Set in rib collar with shoulder to shoulder taping Double needle sleeve and bottom hem MEN'S HARMLESS GREEN SHIRT SIZING CHART SIZE CHEST LENGTH LENGTH MEDIUM 38 (IN) 28 (IN) 8 (IN) LARGE 40 (IN) 28. 5 (IN) 8. 5 (IN) X LARGE 42 (IN) 29 (IN) 9(IN) 2X LARGE 44 (IN) 29. 5 (IN) 9. 5 (IN) 3X LARGE 46 (IN) 30 (IN) 10 (IN) 4X LARGE 48 (IN) 31 (IN) 10. 5 (IN)